Expert Tips for 12th CBSE Board Exam for PCM : Central Board of Secondary Education commenced the CBSE Board 12th exams from February 15, 2020. However, the CBSE 12th exams for PCM students will be held in March 2020. Students must be on their toes and follow the tips by experts. This is a very crucial time when the right strategy should be taken into consideration. Students are often taken over by anxiety and confusion at this moment. Hence, Careers360 brings to you expert tips for CBSE 12th Board exams for PCM from Mr Partha Halder who is a Central Head at FIITJEE, New Delhi. Students can refer to the subject-wise tips for CBSE Board exam Class 12th and know the strategy to prepare for the exams. They can also go through the important topics and chapters of the CBSE 12th exams 2020 given by the expert from which most of the questions are asked.

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Expert Tips for 12th CBSE Board Exam for PCM

Expert Tips for 12th CBSE Board Exam for PCM:

In another 2 weeks time, the CBSE Class XII board exams will begin. Those from a science background (i.e. PCM group) are now gearing up for it. Most of them would have appeared in JEE Main 2020 (in January) and now their focus is to do well in the board exam. Here are a few tips by FIITJEE experts:

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  • Prepare a proper study plan based on the syllabus; allocate appropriate time for revision to different sections based on their weight-age.

  • Prepare high-quality crisp revision notes so as to quickly brush up the concepts.

  • Practice questions and try to solve the questions by yourself; if you are unable to do it, even after sufficient attempts then refer to the solution.

  • Solve a full-length question paper, it will help to mentally prepare and get exam ready.

  • Fix your weak areas, address your doubts, procrastination must be avoided.

  • Analyze your mistakes, it’s important to spot and analyze the mistakes committed.

Tips for 12th CBSE Physics

  • Sufficient time must be devoted to revising lengthy chapters viz Electrostatics & Optics.

  • Practice a few subjective questions like those based on Cyclotron, Magnetometer; even small chapters like Alternating Current.

  • You will have to prepare the following chapters thoroughly :

  • Magnetic properties of materials

  • Semi-conductor

  • Diffraction

  • Polarization

  • Optical Instrument

  • Electromagnetic Wave & Communication System

  • Draw diagrams & label different parts appropriately while solving numerical problems.

Tips for 12th CBSE Chemistry

  • It is important to practice multiple choice questions and very short answer questions from NCERT exemplar.

  • There will be numerical based questions in Physical Chemistry, so it is suggested that write important formulae of each chapter and practice numerical based questions.

  • While Attempting numerical:

  • Write the formulae used.

  • Substitute the values.

  • Calculate and write the final answer with units.

  • Attempt old board question papers and attempt mock tests within a fixed time limit.

CBSE 12th Expert Tips for Organic Chemistry

  • This is a very scoring section. Typically the type of questions asked are:

  • Conceptual questions (reasoning based)

  • Conversions/Word Problem

  • Name Reactions

  • Distinction Test

  • Mechanism of reaction (as per NCERT)

  • Try to be consistent in your preparation and practice daily.

  • While reading ensures that you write the solution yourself several times. It will help to develop that flow and gain speed & accuracy. Remember, balancing of reaction is not needed.

  • Usually, students ignore and/or do not revise chapters like Polymers, Bio-molecular and Chemistry in everyday life. These chapters collectively carry 10 marks weightage, so do revise them.

Also, read CBSE Class 12 Preparation Tips

CBSE Class 12 Expert Tips for Inorganic Chemistry

  • In this section, questions that are asked are based on:

  • Reasoning

  • Structure

  • Complete the reaction

  • p-block elements: One must revise thoroughly.

  • d- and f- block elements: Practice reasoning based questions; revise the structure and properties of compounds such as KMnO4 and K2Cr2O7

  • Coordination Compound: It’s an important chapter.

  • Metallurgy: A wide variety of questions are asked hence revise thoroughly.

  • Attempt old board questions papers & attempt Mock test papers within a fixed time limit.

Tips for 12th CBSE Mathematics

The new pattern by CBSE will include 80 and 20 marks for theory and practical exams respectively.

  • The micro concepts can be ideally developed from NCERT books. One should practice solved examples and exercises.

  • The selective study must be avoided as questions can be asked from any topic. So one must cover the whole syllabus.

  • It is important to devote more time and effort on your weaker topics.

  • Solve & practice previous years question papers along with mock tests.

  • The most important topic where you can score is Calculus (it carries a weightage 35 marks). Focus on continuity and differentiability, logarithmic differentiation, high order derivative, increasing & decreasing functions, maxima & minima word problems, integration, area, differential equation

  • Algebra (Matrices & Determinants), 10 marks.

  • Relation & Function & Inverse trigonometric function (8 marks)

  • Vectors & three-dimensional geometry ( 2 - 4 marks)

  • Linear programming has a weightage of 4-6 marks.

We hope that these essential CBSE 12th Board Science expert tips will help you ace the exam with excellence. All the best!

(Author: Partha Halder is Centre Head of FIITJEE Punjabi Bagh Centre, New Delhi)

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Questions related to CBSE Class 12th

Showing 42 out of 42 Questions

I just want to ask that if a student of cbse class 12th 2020 predicted the score of chemistry -70/100 biology 79/100 and in physics ge predicted 21/70 so CBSE can give him gracing by seeing others subject marks???

Rehan Alam Student Expert 5th Apr, 2020

Dear Aspirant,

No, your marks from other subjects will not have any impact on the marks in other subject. However, it is being noticed that the physics paper of 2020 was a bit on the tougher side and whenever such things happens, CBSE do lenient marking so if you are sure of 21 marks, you might as well expect passing marks.

Hope this helps. Thank you.


I can get below 75% in 12th 2019, then i go for improvement exams for all 5 subjects in 2020, but i give only 1 subject exam due to some personal reasons and absent in other 4,, then I eligible to give improvement exams in 2021.

Megha 3rd Apr, 2020

Hello Aspirant !

As per the CBSE , improvement exam. can be taken only in the successive year of passing Class XII exams

So , you cannot appear for the exam in 2021.

For more information you can visit :

Hope it helps !


may i know the exam date of history 315 sr.secondary

Manish Singh 25th Mar, 2020

After the cancellation of the open board 12th class examination till 31st March, a new date sheet has been announced by the National institute for Open Schooling on its official website. According to it the  exam date for History 315 for class 12 is 9th April


12 compartment student take admission in any college of after complete compartment exam.

Soham sengupta 19th Mar, 2020


actually it is not possible to take admission in any college of BTech after just completing your 10 + 2 compartment exam. You have to  give the exam of of any joint entrance examination for  engineering or similar like this. You have to pass on this examination and if you have a good rank you can take admission in good colleges. Don't worry if you have not a good rank you can take admission in private colleges also with low ranks also.

Hope this will help you.


Im fail in 12 last year. in this year Im private candidate of cbse 2020 . if i fail in one subject. can i give compartment exam

Rehan Alam Student Expert 17th Mar, 2020

Dear Aspirant,

Compartment is an extra chance to appear for the exam which you might not be able to qualify in the first time. Compartment is given if you are fail in only one subject, so yes if you fail in one subject then you're allowed to give compartment, however, if you have fail in more than one subject, then it is considered as fail.

Hope this helps. Thank you.

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