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NCERT Exemplar Class 11 Biology Solutions Chapter 18 Body Fluids and Circulation

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NCERT Exemplar Class 11 Biology Solutions Chapter 18 Body Fluids and Circulation

Edited By Priyanka kumari | Updated on Sep 12, 2022 01:39 PM IST

NCERT Exemplar Class 11 Biology solutions chapter 18 deals with Body fluids. Also known as biofluids, Body fluids are liquids that constitute the human body. The total percentage of water present in the body of adult men is around 60% and that of women is slightly less. This is an important topic and NCERT Exemplar Class 11 Biology chapter 18 solutions will help make it simpler with its precise and concise solutions which make it easier to understand the topic.
Also, check NCERT Class 11 Solutions of other subjects.

NCERT Exemplar Class 11 Biology Solutions of Chapter 18:

Multiple Choice Questions:

Question:1

Which of the following cells does not exhibit phagocytic activity?
(a) Monocytes
(b) Neutrophil
(c) Basophil
(d) Macrophage

Answer:

The answer is the option (c) Basophil
Explanation: Basophils are involved in inflammatory recreation and secretion of histamine, serotonin
etc. It does not exhibit phagocytic activity.


Question:2

One of the common symptoms observed in people infected with Dengue fever is
(a) Significant decrease in RBC count
(b) Significant decrease in WBC count
(c) Significant decrease in platelets count
(d) Significant increase in platelets count

Answer:

The answer is the option (c) Significant decrease in platelets count
Explanation: Low platelet count is one of the ways to diagnose Dengue Fever. It attacks the platelets in our body, reducing them.

Question:3

Which among the followings is correct during each cardiac cycle?
(a) The volume of blood pumped out by the Rt and Lt ventricles is same.
(b) The volume of blood pumped out by the Rt, and Lt ventricle is different
(c) The volume of blood received by each atrium is different
(d) The volume of blood received by the aorta and pulmonary artery is different

Answer:

The answer is the option (a) The volume of blood pumped out by the Rt and Lt ventricles is same.

Explanation: After oxygenation, the volume of the blood entering the lung is the same as the volume of blood leaving it. In the case of varying volume, the heart is susceptible to heart failure due to different pressure.


Question:4

Cardiac activity could be moderated by the autonomous neural system.

Tick the correct answer:

(a) The parasympathetic system stimulates the heart rate and stroke volume
(b) The sympathetic system stimulates the heart rate and stroke volume
(c) The parasympathetic system decreases the heart rate but increases stroke volume
(d) The sympathetic system decreases the heart rate but increases stroke volume

Answer:

The answer is the option (b) The sympathetic system stimulates the heart rate and stroke volume

Explanation: Neural signals from the sympathetic nerves can increase the rate of heartbeat, the strength of the ventricular contraction in the heart, thereby stimulating heart rate and stroke volume.


Question:5

Mark the pair of substances among the following which is essential for coagulation of blood.
(a) Heparin and calcium ions
(b) Calcium ions and platelet factors
(c) Oxalates and citrates
(d) Platelet factors and heparin

Answer:

The answer is the option (b) calcium ions and platelets factors
Explanation- calcium ions and platelets facilitate the conversion of fibrinogen into fibrin so that the blood can coagulate.

Question:6

ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.

(a) Depolarisation of atria
(b) Repolarisation of atria
(c) Depolarisation of ventricles
(d) Repolarisation of ventricles

Answer:

The answer is the option (b) Repolarisation of atria

Explanation: In a normal ECG, P-wave depolarization of atria, QRS complex-ventricular depolarization, T-wave repolarization of ventricles are depicted. Therefore, the repolarization of atria is not shown.


Question:7

Which one of the following types of cells lack nucleus in humans?
(a) RBC
(b) Neutrophils
(c) Eosinophils
(d) Erythrocytes

Answer:

The answer is the option (a) RBC

Explanation- RBCs are the only mammalian cells that do not contain nucleus and mitochondria.

Question:8

Which one of the following blood cells is involved in antibody production?
(a) B-Lymphocytes
(b) T-Lymphocytes
(e) RBC
(d) Neutrophils

Answer:

The answer is the option (a) B-Lymphocytes
Explanation- The primary function of B-Lymphocytes is to create antibodies against soluble antigens in the human body.

Question:9

The cardiac impulse is initiated and conducted further up to ventricle. The correct sequence of conduction of impulse is

(a). SA Node

AV Node

Purkinje fiber

A V Bundle

(b). SA Node

Purkinje fiber

AV Node

A V Bundle

(c). SA Node

AV Node

AV Bundle

Purkinje fiber

(d). SA Node

Purkinje fiber

AV Bundle

AV Node


Answer:

The answer is the option (c)

SA Node

AV Node

AV Bundle

Purkinje fiber


Explanation: The contraction starts in the SA Node; the wave of contraction reaches the AV Node then via the AV Bundle the impulse of contraction is spread, and finally, the Purkinje Fiber stimulates the heartbeat.

Question:10

Agranulocytes responsible for the immune response of the body are
(a) Basophils
(b) Neutrophils
(c) Eosinophils
(d) Lymphocytes

Answer:

The answer is the option (d) Lymphocytes
Explanation- Lymphocytes are responsible for producing antibodies and immune response.

Question:11

The second heart sound (dubb) is associated with the closure of
(a) Tricuspid valve
(b) Semilunar valves
(c) Bicuspid valve
(d) Tricuspid and bicuspid valves.

Answer:

The answer is the option (b) Semilunar valve
Explanation: The bicuspid valve, tricuspid valve and both together are associated with the first heart sound, and the semilunar valve is associated with the second.

Question:12

Which of the following correctly explains a phase/ event in the cardiac cycle in a standard electrocardiogram?
(a) QRS complex indicates atrial contraction.
(b) QRS complex indicates ventricular contraction.
(c) The time between S and T represents atrial systole.
(d) P-wave indicates the beginning of ventricular contraction.

Answer:

The answer is the option (b) QRS complex indicates ventricular contraction
Explanation: QRS wave starts with a downward deflection and continues as an upright triangular wave with downward waves as its base. It indicates ventricular depolarization or contraction.

Body Fluids and Circulation Excercise: 1.4

Question:13

Which of the following statements is incorrect?
(a) A person of ‘O’ blood group has anti ‘A’ and anti ‘B’ antibodies in his blood plasma.
(b) A person of ‘B’ blood group can’t donate blood to a person of ‘A’ blood group.
(c) Blood group is designated on the basis of the presence of antibodies in the blood plasma.
(d) A person of AB blood group is a universal recipient.

Answer:

The answer is the option (c) Blood group is designated on the basis of the presence of antibodies in the blood Plasma.

Explanation: Blood group is based on the presence or absence of antigens A and B on RBCs and presence or absence of two natural antibodies present in plasma.

Question:14

What would be the cardiac output of a person having 72 heartbeats per minute and a stroke volume of 50 mL?

(a) 360 mL
(b) 3600 mL
(c) 7200 mL
(d) 5000 mL

Answer:

The answer is the option (b) 3600 mL

Explanation:
Cardiac output= Stroke volume X heart rate
\\= 50 \times 72\\ = 3600\: \: mL

Question:15

Match the terms given under Column ‘A’ with their functions given under Column ‘B’ and select the
answer from the options given below:

Column A

Column B

A. Lymphatic system

(i) Carries oxygenated blood

B. Pulmonary vein

(ii) Immune response

C. Thrombocytes

(iii) To drain back the tissue fluid to the circulatory system

D. Lymphocytes

(iv) Coagulation of blood

Options:
(a) A – (ii), B – (i), C – (iii), D – (iv)
(b) A – (iii), B – (i), C – (iv), D – (ii)
(c) A – (iii), B – (i), C – (ii), D – (iv)
(d) A – (ii), B – (i), C – (iii), D – (iv)

Answer:

The answer is the option (b) A – (iii), B – (i), C – (iv), D – (ii)

Explanation:

Column I

Column II

A. Lymphatic system

To drain back the tissue fluid to the circulatory system

B. Pulmonary vein

Carries oxygenated blood

C. Thrombocytes

Coagulation of blood

D. Lymphocytes

Immune response


Question:16

Read the following statements and choose the correct option

Statement 1: Atria receive blood from all parts of the body, which subsequently flows to ventricles.

Statement 2: Action potential generated at the sino-atrial node passes from atria to ventricles.

a) Action mentioned in Statement 1 is dependent on action mentioned in Statement 2
b) Action mentioned in Statement 2 is dependent on action mentioned in Statement 1
c) Action mentioned in Statements 1 and 2 is independent of each other.
d) Action mentioned in Statements 1 and 2 is synchronous.

Answer:

The answer is the option (d) Action mentioned in Statements 1 and 2 are synchronous.
Explanation:
Right atria receive blood from the superior vena cava and the left atria from the lungs. The blood then flows into the ventricles. The contraction in Atria moves from SA nodes to AV nodes and then the Purkinje Fibers thereby making the two statements synchronous.

Very Short Answer Type Questions:

Question:1

Name the blood component which is viscous and straw coloured fluid.

Answer:

Plasma.

Question:2

Complete the missing word in the statement given below:

(a) Plasma without __________ factors is called serum.
(b) __________and monocytes are phagocytic cells.
(c) Eosinophils are associated with__________ reactions.
(d) ___________ions play a significant role in clotting.
(e) One can determine the heartbeat rate by counting the number of __________ in an ECG.

Answer:

(a) blood Clotting
(b) Neutrophils
(c) allergic
(d) Calcium
(e) QRS

Question:5

Given below are the abnormal conditions related to blood circulation. Name the disorders.

(a) Acute chest pain due to failure of O2 supply to heart muscles
(b) Increased systolic pressure

Answer:

(a) Angina Pectoris
(b) Hypertension or blood pressure

Question:7

Define the following terms and give their location?
(a) Purkinje fibre
(b) Bundle of His

Answer:

(a) The conducting fibres which stimulate impulses are called Purkinje fibres. They are present in the ventricular myocardium.
(b) Bundle of His are special fibres including the Purkinje fibre originating from the AV node. It is found in the well of the right atrium.

Question:8

State the functions of the following in blood
(a) Fibrinogen
(b) Globulin
(c) Neutrophils
(d) Lymphocytes

Answer:

(a) Fibrinogen helps in converting fibrin for blood clotting.
(b) They help in immunity.
(c) They help in destroying foreign materials.
(d) They are responsible for stimulating immune responses.

Question:9

What physiological circumstances lead to erythroblastosis foetalis?

Answer:

Erythroblastosis foetalis is caused by Rh incompatibility or mismatching, which is observed between the Rh-negative blood of a pregnant mother with Rh +ve blood of the fetus. This could cause anaemia or even the death of the fetus. The mother can also be at equal risk.

Question:10

Explain the consequences of a situation in which blood does not coagulate.

Answer:

If blood does not coagulate, it can lead to excessive loss of blood, leading to Hemorrhage.

Question:11

What is the significance of the time gap in the passage of action potential from the sino-atrial node to the ventricle?Answer:

It allows the relaxation of the ventricles, which leads to a decrease in ventricular pressure causing the semilunar valves to close and hence prevents the blood from backflowing into the ventricles.

Question:12

How will you interpret an electrocardiogram (ECG) in which time taken in QRS complex is higher?

Answer:

If QRS complex is higher, it will be an indication of myocardial infarction or heart attack.

Short Answer Type Questions:

Question:1

The walls of ventricles are much thicker than atria. Explain.

Answer:

The walls of ventricles are much thicker as they exert more pressure in the pumping of blood to most of the body parts. The left ventricle has three times thicker walls than the right. The atria is a collecting chamber and is thus thin-walled.


Question:2

Differentiate between
(a) Blood and Lymph
(b) Basophils and Eosinophils
(c) Tricuspid and bicuspid valve

Answer:

(a)

Blood

Lymph

(i)Connective tissue with RBCs

(i) Connective tissue without RBCs.

(ii) The flow of blood is through blood vessels.

(ii) The flow of lymph is through lymphatic system.

(b)

Basophils

Eosinophils

(i) Consists of the 3-lobed nucleus and a lesser number of coarse granules.

(i) Consists of the bilobed nucleus and coarser granules.

(ii) The composition is 0 – 1% of the blood volume.

(ii) The composition is 1 – 6% of the blood volume.

(c)

Tricuspid valve

Bicuspid valve

(i) Located between the right auricle and right ventricle.

(i) Located between the left auricle and left ventricle.

(ii) It consists of three flaps.

(ii) It consists of two flaps.

(iii) It also called the right atrioventricular valve.

(iii) It is also called the mitral valve.


Question:3

Briefly describe the followings:
(a) Anaemia
(b) Angina Pectoris
(c) Atherosclerosis
(d) Hypertension
(e) Heart failure
(f) Erythroblastosis foetalis

Answer:

(a) Decrease in the total number of RBCs which is less than normal causes anaemia. Another cause for it is the lesser than normal quantity of haemoglobin.

(b) Pain emerging in the chest region due to insufficient oxygen supply to the hearts is called angina pectoris.

(c) It is a disease in which there is a deposition of plaque due to high cholesterol levels. It blocks the coronary arteries leading to various heart diseases.

(d) It is a disorder in which the blood pressure is higher than normal, which is 120/80.

(e) Heart failures occur when the heart is congested and is unable to pump blood to meet the needs of the body. It is different from a heart attack.

(f) Erythroblastosis foetalis is caused by Rh incompatibility or mismatching, which is observed between the Rh-negative blood of a pregnant mother with Rh +ve blood of the fetus. This could cause anaemia or even the death of the fetus. The mother can also be at equal risk.

Question:4

Explain the advantage of the complete partition of ventricle among birds and mammals and hence leading to double circulation.

Answer:

It results in complete separation of oxygenated and deoxygenated blood, which leads to double circulation (systemic and pulmonary circulation), allowing the more efficient supply of oxygen into the cells and not mixing the two blood.

Question:5

What is the significance of the hepatic portal system in the circulatory system?

Answer:

Significance of the Hepatic Portal System:
(a) Drugs that are metabolized by the liver are enhanced by the hepatic portal system.
(b) It helps in removing harmful materials like ammonia by converting it into urea from the body.
(c) It helps in the transportation of proteins that are produced by the liver

Question:6

Explain the functional significance of the lymphatic system?

Answer:

Significant functions of the lymphatic system:
(a) It helps in collecting the interstitial fluid from tissues.
(b) Lymph nodes produce WBC and antibodies that are essential for immunity of the human body.
(c) It transports many important digested fats, hormones, fat-soluble vitamins etc.
(d) The lymphatic system plays an essential role in the absorption of fat.

Question:7

Write the features that distinguish between the two
(a) Plasma and Serum
(b) Open and closed circulatory system
(c) Sino-atrial node and Atrio-ventricular node

Answer:

Plasma

Serum

(i) Fluid lacking blood corpuscles is called plasma.

(i) The fluid lacking clotting elements is called serum.

(ii) Clotting materials are present.

(ii) Clotting materials are not present.

(iii) Plays essential role in blood clotting.

(iii) Does not help in blood clotting.



Open circulatory system

Closed circulatory system

(i) Blood is directly flown in target organs.

(i) Blood is supplied to organs by a closed system of vessels.

(ii) The respiratory pigment is not present in most of the cases

(ii) The respiratory pigment is present in all of the cases.

(iii) It is found in arthropods and molluscs.

(iii) Can be found in all vertebrates, annelids, some molluscs.


Sino-atrial Node

Atrio-ventricular Node

(i) Located on the upper side of the right auricle.

(i) Located at the junction of the right auricle and right ventricle.

(ii) Helps in initiating the heartbeat.

(ii) It receives an impulse from the SA node and forwards it further.


Question:8

Thrombocytes are essential for the coagulation of blood. Comment.

Answer:

Thrombocytes or platelets play an essential role in blood coagulation. Thrombocytes forms the bulk of the blood clot. They coalesce together to form the clot. Fibrin develops a mesh around the cluster of platelets. Therefore, along with fibrin, platelets are also essential for blood coagulation.

Question:9

Answer the following
(a) Name the major site where RBCs are formed.
(b) Which part of the heart is responsible for initiating and maintaining its rhythmic activity?
(c) What is specific in the heart of crocodiles among reptilians?

Answer:

(a) In adults- bone marrow and in embryos-liver.

(b) Sino-Atrial Node

(c) Most of the reptiles have three-chambered hearts, but crocodiles have four-chambered hearts

Long Answer Type Questions:

Question:1

Explain Rh-incompatibility in humans.

Answer:

Rh grouping of blood is based on the presence and absence of the Rh factor in the blood. If it is present, blood is said to be Rh-positive, if not, it is said to be Rh-negative. If the Rh factor is present, then the blood group is said to be Rh-positive; otherwise, it is called Rh-negative.
Rh incompatibility or mismatching is observed between the Rh-negative blood of a pregnant mother with Rh +ve blood of the fetus. It is known as Erythroblastosis Foetalis. This could cause anaemia or even the death of the fetus. The mother can also be at equal risk.


Question:2

Describe the events in the cardiac cycle. Explain “double circulation”.

Answer:

The cardiac cycle comprises of one heartbeat, which can also be understood as contraction and relaxation of cardiac muscles per cycle. The contraction phase of atria and ventricles is called the systole, and the relaxation is called the diastole. The stages are as follows-

  1. Atrial systole: The contraction wave contracts the atria stimulated by the SA node, and the blood is moved into the ventricles as the bicuspids and tricuspids are open.

  2. Ventricular systole: The beginning of the ventricular systole is stimulated by the AV node. The bicuspid and tricuspid valves close, making the first heart sound. The complete ventricular contraction occurs, the semilunar valves open, and the blood is forced into the pulmonary trunk and aorta.

  3. Beginning of ventricular diastole: The ventricles relax and as the semilunar valves close, the second heart sound is created.

  4. Joint diastole: As the ventricles relax, the tricuspid and bicuspid valves are forced open, and the blood can now move freely to the ventricles.

Double Circulation: In a cardiac cycle, blood flows through the heart twice, and this circulation is called double circulation. It results in complete separation of oxygenated and deoxygenated blood, which leads to the systemic and pulmonary circulation, allowing the more efficient supply of oxygen into the cells and not mixing the two blood.

Question:3

Explain different types of blood groups and donor compatibility by making a table.

Answer:

Blood group

Antigens

Antibodies

Can receive blood fromDonor group

Can give blood to

A

A

Anti-B

A, O

A and AB

B

B

A

B, O

B and AB-

AB (Universal Recipient)

A, B

Nil

A, B, AB, O

AB Only

O (Universal Donor)

Nil

A, B

O Only

A, AB, B, and O


Question:4

Write a short note on the following
(a) Hypertension
(b) Coronary Artery Disease

Answer:

(a) Hypertension is increased blood pressure. It is a disorder in which the blood pressure is higher than normal, which is 120/80 mm Hg. The first denomination indicates systolic blood pressure and the lower one is diastolic blood pressure. If the blood pressure is more than 140/90 mm Hg or more, then the person is said to have a blood pressure problem or hypertension. It can have adverse effects on the heart, kidneys, liver and even brain.

(b) Atherosclerosis is related to coronary arteries. It reduces the volume of the blood that is supplied to the cardiac muscles. This condition is also known as coronary artery disease (CAD). CAD can lead to heart attacks and even heart failures.

According to NCERT Exemplar Class 11 Biology solutions chapter 18, simple organisms like sponges and coelenterates circulate water from their surroundings through their body cavities to facilitate the cells to exchange these substances. More complex organisms use special fluids within their bodies to transport such materials. Blood is the most commonly used body fluid by most of the higher organisms including humans for this purpose. All of which are detailed in the NCERT Exemplar solutions for Class 11 Biology chapter 18.

NCERT Exemplar Class 11 Biology solutions chapter 18 is often referred to as the Bible of CBSE with the accurate and detailed solutions it provides. The following set of answers have been worked upon by professionals with immense knowledge and experience in the field of NCERT and CBSE board exams.

By utilising the NCERT Exemplar Class 11 Biology chapter 18 solutions PDF Download function students can make learning even more convenient as they will get access to quality study material.

Major Subtopics of NCERT Exemplar Class 11 Biology Solutions Chapter 18 Body Fluids and Circulation:

  • Blood
  • Plasma
  • Formed Elements
  • Blood Groups
  • ABO Grouping
  • Rh Grouping
  • Coagulation of Blood
  • Lymph (Tissue Fluid)
  • Circulatory Pathways
  • Human Circulatory System
  • Cardiac Cycle
  • Electrocardiograph (ECG)
  • Double Circulation
  • Regulation of cardiac activity
  • Disorders of the circulatory system

What will the Students Learn in the NCERT Exemplar Class 11 Biology Chapter 18 Solutions?

In NCERT Exemplar Class 11 Biology chapter 18 solutions, students will learn about plasma and also the details about the different elements present in the blood such as erythrocytes, leukocytes, and thrombocytes. It also contains a diagrammatic representation of formed elements in the blood.

According to NCERT Exemplar Class 11 Biology solutions chapter 18, blood is an essential aspect of our human body. Iit provides our heart with the essential nutrients along with oxygen for its proper functioning and our four-chambered heart, the right side of which receives the blood from the body and pumps it to the lungs.

NCERT Exemplar Class 11 Biology Solutions Chapter-Wise

Important Topics in NCERT Exemplar Class 11 Biology Solutions Chapter 18 Body Fluids and Circulation:

· According to Class 11 Biology NCERT Exemplar solutions chapter 18 which has explained the coagulation of blood. This means that blood exhibits clotting when there’s an injury which prevents the loss of excessive blood from the body.

· The explanation of the circulatory system is also a significant part of the chapter as it is always good to know about one’s circulatory system and how the heart works. A well-defined diagram of the heart provides a deeper insight into the different parts of the heart. In NCERT Exemplar Class 11 Biology solutions chapter 18, these are important topics which students should pay extra attention to.

· Hence, students who wish to pursue medicine in the future should consider this chapter as a stepping stone of knowledge.

NCERT Exemplar Class 11 Solutions

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Frequently Asked Question (FAQs)

1. What are all of the things one will learn in this chapter?

Through NCERT Exemplar Class 11 Biology solutions chapter 18 one will learn everything about the circulatory system of the body which includes, blood, plasma, coronary system, disorders, and blood groups.

2. Who prepares the solutions to the NCERT questions?

We have a team of experienced teachers who have years of experience teaching CBSE. They are the ones who are always aware of all of the latest changes in CBSE and NCERT and are the ones who prepare the NCERT exemplar Class 11 Biology solutions chapter 18 as per the board exam pattern.

3. How will these solutions help in the preparation of exams?

Referring to the Class 11 Biology NCERT Exemplar solutions chapter 18 students can get a better and deeper understanding of the topics mentioned in the chapter to score well in the exams.

4. Are these solutions available offline?

Yes, students can make use of NCERT exemplar class 11 biology solutions chapter 18 pdf download directly from this page, and then use it offline in PDF format.

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A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1)

0.34\; J

Option 2)

0.16\; J

Option 3)

1.00\; J

Option 4)

0.67\; J

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

Option 1)

2.45×10−3 kg

Option 2)

 6.45×10−3 kg

Option 3)

 9.89×10−3 kg

Option 4)

12.89×10−3 kg

 

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1)

2,000 \; J - 5,000\; J

Option 2)

200 \, \, J - 500 \, \, J

Option 3)

2\times 10^{5}J-3\times 10^{5}J

Option 4)

20,000 \, \, J - 50,000 \, \, J

A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

Option 1)

K/2\,

Option 2)

\; K\;

Option 3)

zero\;

Option 4)

K/4

In the reaction,

2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

Option 1)

11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

Option 2)

6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced

Option 3)

33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

Option 4)

67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

Option 1)

0.02

Option 2)

3.125 × 10-2

Option 3)

1.25 × 10-2

Option 4)

2.5 × 10-2

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1)

decrease twice

Option 2)

increase two fold

Option 3)

remain unchanged

Option 4)

be a function of the molecular mass of the substance.

With increase of temperature, which of these changes?

Option 1)

Molality

Option 2)

Weight fraction of solute

Option 3)

Fraction of solute present in water

Option 4)

Mole fraction.

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

Option 1)

twice that in 60 g carbon

Option 2)

6.023 × 1022

Option 3)

half that in 8 g He

Option 4)

558.5 × 6.023 × 1023

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

Option 1)

less than 3

Option 2)

more than 3 but less than 6

Option 3)

more than 6 but less than 9

Option 4)

more than 9

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Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

3 Jobs Available
Geothermal Engineer

Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.

3 Jobs Available
Database Architect

If you are intrigued by the programming world and are interested in developing communications networks then a career as database architect may be a good option for you. Data architect roles and responsibilities include building design models for data communication networks. Wide Area Networks (WANs), local area networks (LANs), and intranets are included in the database networks. It is expected that database architects will have in-depth knowledge of a company's business to develop a network to fulfil the requirements of the organisation. Stay tuned as we look at the larger picture and give you more information on what is db architecture, why you should pursue database architecture, what to expect from such a degree and what your job opportunities will be after graduation. Here, we will be discussing how to become a data architect. Students can visit NIT Trichy, IIT Kharagpur, JMI New Delhi

3 Jobs Available
Remote Sensing Technician

Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive. 

Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.

3 Jobs Available
Budget Analyst

Budget analysis, in a nutshell, entails thoroughly analyzing the details of a financial budget. The budget analysis aims to better understand and manage revenue. Budget analysts assist in the achievement of financial targets, the preservation of profitability, and the pursuit of long-term growth for a business. Budget analysts generally have a bachelor's degree in accounting, finance, economics, or a closely related field. Knowledge of Financial Management is of prime importance in this career.

4 Jobs Available
Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

3 Jobs Available
Underwriter

An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.

3 Jobs Available
Finance Executive
3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
Operations Manager

Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.

3 Jobs Available
Stock Analyst

Individuals who opt for a career as a stock analyst examine the company's investments makes decisions and keep track of financial securities. The nature of such investments will differ from one business to the next. Individuals in the stock analyst career use data mining to forecast a company's profits and revenues, advise clients on whether to buy or sell, participate in seminars, and discussing financial matters with executives and evaluate annual reports.

2 Jobs Available
Researcher

A Researcher is a professional who is responsible for collecting data and information by reviewing the literature and conducting experiments and surveys. He or she uses various methodological processes to provide accurate data and information that is utilised by academicians and other industry professionals. Here, we will discuss what is a researcher, the researcher's salary, types of researchers.

2 Jobs Available
Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

5 Jobs Available
Transportation Planner

A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.

3 Jobs Available
Environmental Engineer

Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems. 

2 Jobs Available
Safety Manager

A Safety Manager is a professional responsible for employee’s safety at work. He or she plans, implements and oversees the company’s employee safety. A Safety Manager ensures compliance and adherence to Occupational Health and Safety (OHS) guidelines.

2 Jobs Available
Conservation Architect

A Conservation Architect is a professional responsible for conserving and restoring buildings or monuments having a historic value. He or she applies techniques to document and stabilise the object’s state without any further damage. A Conservation Architect restores the monuments and heritage buildings to bring them back to their original state.

2 Jobs Available
Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software. 

2 Jobs Available
Highway Engineer

Highway Engineer Job Description: A Highway Engineer is a civil engineer who specialises in planning and building thousands of miles of roads that support connectivity and allow transportation across the country. He or she ensures that traffic management schemes are effectively planned concerning economic sustainability and successful implementation.

2 Jobs Available
Field Surveyor

Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials. 

2 Jobs Available
Orthotist and Prosthetist

Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.

6 Jobs Available
Pathologist

A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.

5 Jobs Available
Veterinary Doctor
5 Jobs Available
Speech Therapist
4 Jobs Available
Gynaecologist

Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth. 

4 Jobs Available
Audiologist

The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.

3 Jobs Available
Oncologist

An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.

3 Jobs Available
Anatomist

Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.

2 Jobs Available
Actor

For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs. 

4 Jobs Available
Acrobat

Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.

3 Jobs Available
Video Game Designer

Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.

Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.

3 Jobs Available
Radio Jockey

Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.

A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.

3 Jobs Available
Choreographer

The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.

2 Jobs Available
Social Media Manager

A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.

2 Jobs Available
Photographer

Photography is considered both a science and an art, an artistic means of expression in which the camera replaces the pen. In a career as a photographer, an individual is hired to capture the moments of public and private events, such as press conferences or weddings, or may also work inside a studio, where people go to get their picture clicked. Photography is divided into many streams each generating numerous career opportunities in photography. With the boom in advertising, media, and the fashion industry, photography has emerged as a lucrative and thrilling career option for many Indian youths.

2 Jobs Available
Producer

An individual who is pursuing a career as a producer is responsible for managing the business aspects of production. They are involved in each aspect of production from its inception to deception. Famous movie producers review the script, recommend changes and visualise the story. 

They are responsible for overseeing the finance involved in the project and distributing the film for broadcasting on various platforms. A career as a producer is quite fulfilling as well as exhaustive in terms of playing different roles in order for a production to be successful. Famous movie producers are responsible for hiring creative and technical personnel on contract basis.

2 Jobs Available
Copy Writer

In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism, Advertising, Marketing Management. Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook. 

5 Jobs Available
Vlogger

In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion. 

Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article. 

3 Jobs Available
Publisher

For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.

3 Jobs Available
Journalist

Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.

3 Jobs Available
Editor

Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.

3 Jobs Available
Reporter

Individuals who opt for a career as a reporter may often be at work on national holidays and festivities. He or she pitches various story ideas and covers news stories in risky situations. Students can pursue a BMC (Bachelor of Mass Communication), B.M.M. (Bachelor of Mass Media), or MAJMC (MA in Journalism and Mass Communication) to become a reporter. While we sit at home reporters travel to locations to collect information that carries a news value.  

2 Jobs Available
Corporate Executive

Are you searching for a Corporate Executive job description? A Corporate Executive role comes with administrative duties. He or she provides support to the leadership of the organisation. A Corporate Executive fulfils the business purpose and ensures its financial stability. In this article, we are going to discuss how to become corporate executive.

2 Jobs Available
Multimedia Specialist

A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications. 

2 Jobs Available
Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

5 Jobs Available
QA Manager
4 Jobs Available
Quality Controller

A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product. 

A quality controller records detailed information about products with defects and sends it to the supervisor or plant manager to take necessary actions to improve the production process.

3 Jobs Available
Production Manager
3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
QA Lead

A QA Lead is in charge of the QA Team. The role of QA Lead comes with the responsibility of assessing services and products in order to determine that he or she meets the quality standards. He or she develops, implements and manages test plans. 

2 Jobs Available
Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software. 

2 Jobs Available
Process Development Engineer

The Process Development Engineers design, implement, manufacture, mine, and other production systems using technical knowledge and expertise in the industry. They use computer modeling software to test technologies and machinery. An individual who is opting career as Process Development Engineer is responsible for developing cost-effective and efficient processes. They also monitor the production process and ensure it functions smoothly and efficiently.

2 Jobs Available
QA Manager
4 Jobs Available
AWS Solution Architect

An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party. 

4 Jobs Available
Azure Administrator

An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems. 

4 Jobs Available
Computer Programmer

Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.

3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
Information Security Manager

Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack 

3 Jobs Available
ITSM Manager
3 Jobs Available
Automation Test Engineer

An Automation Test Engineer job involves executing automated test scripts. He or she identifies the project’s problems and troubleshoots them. The role involves documenting the defect using management tools. He or she works with the application team in order to resolve any issues arising during the testing process. 

2 Jobs Available
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