NSO Sample Question & Answer 2025-26 – Download SOF NSO Sample Papers PDF

Download SOF NSO Sample Question & Answers

The NSO exam has a total of 50 questions and a duration of one hour. The SOF NSO paper is divided into three sections, each with a specific marking scheme.

• The Logical Reasoning section contains 10 questions, each worth 1 mark.

• The Science section has 35 questions, with each question also carrying 1 mark.

• The final section, the Achievers Section, consists of 5 questions.

These questions are designed to be more challenging, and each one is worth 3 marks, making this a crucial section for scoring higher. There is no negative marking for incorrect answers.

NSO Sample Questions & Answers & Syllabus

Below is the syllabus, along with the types of questions provided to give students an idea of the NSO exam pattern. Students can practice these topics and their related questions. The complete set of questions with solutions has been given in the PDF files above.

NSO Class 1 Syllabus and Types of Questions

• Section- 1: Patterns, Odd One Out, Measuring Units, Geometrical Shapes, Spatial Understanding, Grouping of Figures, Analogy, Ranking Test, Problems based on Figures.

• Section 2: Living and Non-living Things, Plants, Animals, Human Beings and Their Needs, Good Habits and Safety Rules, Air and Water, Weather and The Sky.

• Section- 3: Higher Order Thinking Questions - Syllabus as per Section- 2

NSO Class 1 Sample Question

Select the odd one out based on the number of legs they have.

(A) Butterfly (B) Spider (C) Mosquito (D) Ladybug

Answer: (B)

NSO Class 2 Syllabus and Types of Questions

• Section – 1: Patterns, Odd One Out, Measuring Units, Geometrical Shapes, Analogy, Ranking Test, Grouping of Figures, Embedded Figures, Coding-Decoding.

• Section – 2: Plants, Animals, Human Body, Food, Housing and Clothing, Family and Festivals, Good Habits and Safety Rules, Transport and Communication, Air, Water and Rocks, Earth and Universe.

• Section – 3: Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 2 Sample Question

If the day before yesterday was Sunday, then tomorrow will be __________.

(A) Wednesday (B) Tuesday (C) Friday (D) Thursday

Answer: (A)

NSO Class 3 Syllabus and Types of Questions

• Section – 1: Patterns, Analogy and Classification, Alphabet Test, Coding-Decoding, Ranking Test, Grouping of Figures and Figure Matrix, Mirror Images, Geometrical Shapes, Embedded Figures, Possible Combinations, Clock and Calendar.

• Section – 2: Plants and Animals, Birds, Food, Housing, Clothing and Occupation, Transport, Communication and Safety Rules, Human Body, Earth and Universe, Matter and Materials, Light, Sound and Force, Our Environment.

• Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 3 Sample Question

Which of the following plants has a similar leaf shape to the maple plant?

(A) Pine (B) Coconut (C) Lotus (D) Papaya

Answer: (D)

NSO Class 4 Syllabus and Types of Questions

• Section – 1: Patterns, Alphabet Test, Coding-Decoding, Ranking Test, Mirror Images, Geometrical Shapes and Solids, Embedded Figures, Direction Sense Test, Possible Combinations, Analogy and Classification, Clock and Calendar.

• Section – 2: Plants, Animals, Food and Digestion, Human Needs, Matter and Materials, Force, Work and Energy, Our Environment, Earth and Universe.

• Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 4 Sample Question

Which of the following can be separated by using a separating funnel?

(A) Oil and water (B) Common salt and water (C) Rice grains and chaff (D) Chalk powder and water

Answer: (A)

NSO Class 5 Syllabus and Types of Questions

Section – 1: Patterns, Analogy and Classification, Geometrical Shapes, Mirror and Water Images, Direction Sense Test, Ranking Test, Alphabet Test, Logical Sequence of Words, Puzzle Test, CodingDecoding, Clock and Calendar.

Section – 2: Animals, Human Body and Health, Plants, Natural Resources and Indian Heritage, Pollution and Calamities, Earth and Universe, Matter and Materials, Force and Energy.

Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 5 Sample Question

Complete the given analogy by selecting the correct option. Rickets: Vitamin D:: _________ : Vitamin B1

(A) Beriberi (B) Scurvy (C) Night-blindness (D) Anaemia

Answer: (A)

NSO Class 6 Syllabus and Types of Questions

• Section – 1: Verbal and Non-Verbal Reasoning.

• Section – 2: Food and its Components, Materials Around Us, States of Water, Methods of Separation, The World of Living (Parts of Plants, Grouping of Plants and Animals, Adaptations in Plants and Animals, Characteristics of Living Beings, Life Cycle of Plants and Animals), Exploring Magnets, Measurement of Length and Motion, Temperature and its Measurement, Beyond Earth, Natural Resources (Air, Water, Forests, Sun: The Source of Energy, Soil, Rocks and Minerals, Fossil Fuels, Renewable and Non-Renewable Resources).

• Section – 3: Higher Order Thinking Questions - Syllabus as per Section – 2

NSO Class 6 Sample Question

Which among the given diseases is/are transmitted by female mosquitoes?

(A) Malaria (B) Dengue (C) Chikungunya (D) All of these

Answer: (D)

NSO Class 7 Syllabus and Types of Questions

• Section – 1: Verbal and Non-Verbal Reasoning.

• Section – 2: Heat, Motion and Time, Electric Current and its Effects, Light, Acids, Bases and Salts, Physical and Chemical Changes, Nutrition in Plants and Animals, Respiration in Organisms, Transportation in Plants and Animals, Reproduction in Plants, Natural Resources and Their Conservation (Forests: Our Lifeline, Wastewater Story).

• Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 7 Sample Question

Which of the following statements is correct regarding cross-pollination in plants?

(A) It can occur between bisexual flowers only.

(B) It does not require any external agents to transfer pollen.

(C) It is a type of asexual reproduction.

(D) It produces offspring with more genetic variation.

Answer: (D)

NSO Class 8 Syllabus and Types of Questions

• Section – 1: Verbal and Non-Verbal Reasoning.

• Section – 2: Crop Production and Management, Microorganisms, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Reproduction and Endocrine System, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light.

• Section – 3: Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 8 Sample Question

Gelidium is a ________ algae.

(A) Red (B) Green (C) Brown (D) Purple

Answer: (A)

NSO Class 9 Syllabus and Types of Questions

• Section – 1: Verbal and Non-Verbal Reasoning.

• Section – 2: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of the Atom, Cell-The Fundamental Unit of Life, Tissues, Natural Resources, Improvement in Food Resources.

• Section – 3: Higher Order Thinking Questions - Syllabus as per Section – 2

NSO Class 9 Sample Question

Which of the following is not a man-made cause of air pollution?

(A) Burning of fossil fuels (B) Deforestation (C) Pollen grains (D) Emission of aerosols from jet airplanes

Answer: (C)

NSO Class 10 Syllabus and Types of Questions

• Section – 1: Verbal and Non-Verbal Reasoning.

• Section – 2: Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non‑metals, Carbon and Its Compounds, Life Processes, Control and Coordination, Reproduction in Organisms, Heredity, Light-Reflection and Refraction, The Human Eye and the Colourful World, Electricity, Magnetic Effects of Electric Current, Our Environment and Its Management.

• Section – 3: Higher Order Thinking Questions - Syllabus as per Section – 2.

NSO Class 10 Sample Question

Select the option that correctly fills in the blanks. In generative fertilisation, a (i) fuses with a (ii). (i) and (ii) respectively are

(A) Polar nucleus, Secondary nucleus

(B) Male gamete, Polar nucleus

(C) Male gamete, Female gamete

(D) Female gamete, Secondary nucleus.

Answer: (C)

NSO Class 12 Syllabus and Types of Questions

• Section- 1: Physics: Electricity and Magnetism, Electromagnetic Induction, Alternating current, Electromagnetic waves, Optics, Modern Physics, Semiconductor Electronics. Chemistry: Solutions, Electrochemistry, Chemical Kinetics, The d-and f-Block Elements, Coordination Compounds, Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, Aldehydes, Ketones and Carboxylic Acids, Amines, Biomolecules.

• Section- 2: Higher Order Thinking Questions - Syllabus as per Section – 1. Section – 3: Relations and Functions, Inverse Trigonometric Functions, Matrices and Determinants, Continuity and Differentiability, Application of Derivatives, Integrals, Application of Integrals, Differential Equations, Vector Algebra, Three-Dimensional Geometry, Probability, Linear Programming. OR

• Section- 3: Reproduction, Genetics and Evolution, Biology in Human Welfare, Biotechnology, Ecology.

NSO Class 12 Sample Question

The peak emission from a black body at a certain temperature occurs at a wavelength of 9000 Å. On increasing its temperature, the total radiation emitted is increased 81 times. At the initial temperature, when the peak radiation from the black body is incident on a metal surface, it does not cause any photo emission. After the increase of temperature, the peak radiation from the black body caused photo emission. To bring these photoelectrons to rest, a potential equivalent to the excitation energy between n = 3 and n = 4, Bohr levels of the hydrogen atom are required. What is the work function of the metal?

(A) 3.48 eV (B) 2.25 eV (C) 6.92 eV (D) 5 eV

Answer: (A)