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NDA General Science PYQs with Solutions

1,304 previous year questions from General Science (NDA General Ability) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

1,304 questionsGeneral Ability2023–2026Answers + solutions

About General Science PYQs

General Science has 1,304 previous year questions in the Quantrex Academy NDA General Ability bank. The 220 questions in this list come from NDA (220), spanning 2023 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

NDA General Science PYQs with Solutions

About General Science PYQs

Questions by year (this list)

General Science questions with solutions

For an object in gravitational field, the gravitational potential is the same at two points A and B , but the gravitational field is not the same at these two points. Which one of

A very large container consists of an ideal gas. The speed of sound in the gas is x . When the pressure of the gas is doubled while keeping the temperature constant, the speed of

A constant power machine pulls a block on a smooth horizontal surface. Which one of the following correctly describes the relation between speed of the block (v) and time (t) ?

A ball is dropped from rest from height h above the ground in frame S (the Earth's frame). Another frame S' is moving upwards with constant speed u relative to the Earth. In frame

A pendulum of length L oscillates with an angular amplitude of θ = 60^ ^ ∘ and time period T . Let T_0 = 2π (L)/(g) be the time period for small angle of oscillations, where g is

A solid of mass m has temperature-dependent specific heat as C(T) = C_0 + α T , where C_0 and α are constants. The solid is heated from T_1 to T_2 . Which one of the following is

In a certain process, the relation between pressure (P) and volume (V) , for an ideal gas, is given by PV^2 = constant . If the initial temperature is T_1 and the final

An object is placed far beyond the centre of curvature of a concave mirror. The object then starts accelerating towards the mirror. Which one of the following is correct?

A person jumps from a height on soft sand. Which one of the following is the correct reason for less likely injury to the person?

One year at a planet is 8 times as large as compared to the one year at the Earth. Which one of the following is correct about the planet's orbit?

A particle is moved from point X to point Y under a force field. The work done depends only on the initial and final speeds. Which one of the following is correct?

A lightning rod with sharp tip reduces damage risk. Which one of the following is the primary reason for it?

What is the upward force acting on a skydiver of mass 60\,kg who is falling at a uniform speed of 2\,m/s ?

It has been observed that a mirror always forms the image between the pole and the focus, irrespective of the location of the object. Which one of the following is correct in

With respect to electromagnetic waves, the human eye is sensitive to

A glass slab of refractive index 1.5 is cut in the shape of a parallelepiped ABCD as shown in the figure. Surface BC is polished to form a perfect reflector. Light is incident at

Three wires each of length L , cross-sectional area A and resistivity ρ are connected as shown in the figure. These are to be replaced by another wire of same resistivity such

The force-time (F-t) graph of a 10\,kg moving object is shown below: What is the final speed of the object?

If x is the number of electrons and y is the number of nucleons present in ^ 32 _ 16 ^ 2- , then which one of the following is correct?

The position vector of a particle is given by r = 3 \,t^2 i + 2 \,t j + 5 \, k . Which one of the following statements is correct?

Two forces of equal magnitude simultaneously act at a point. It is observed that the resultant force is equal in magnitude to the individual forces. Which of the following

Consider the following statements: I. A colloid and a suspension are heterogeneous mixtures. II. Colloids can be separated from the mixture by the process of centrifugation. III.

A non-volatile solid solute may be separated from a solution by which of the following processes? I. Evaporation II. Crystallization Select the correct answer using the code given

Which of the following are oxidation reactions? I. Rusting of iron II. Burning of fuel III. Rancidity of oils and fats IV. Browning of fruits Select the correct answer using the

Consider the following statement: 'Acids are substances that dissociate in water to give hydrogen ions H^+ (aq), and bases are substances that produce hydroxyl ions OH^- (aq).'

A 5\,g piece of ice at -20^ ^ ∘ C is put into m kg of water at 30^ ^ ∘ C temperature. The heat is exchanged only between the ice and the water. The final temperature of the

A floating body is in stable state. Which one of the following is correct?

Superphosphate of lime, a phosphate fertilizer, is obtained by the reaction of

1.7\,g of silver nitrate is dissolved in 100\,g of water, and 0.585\,g of sodium chloride is dissolved in 100\,g of water. Both are mixed and a chemical reaction occurs. 1.435\,g

Consider the following statements: I. Pine oil is used as antifoaming agent in the emulsion paints. II. Protective colloids are used in the emulsion paints to decrease their

Which of the following statements is/are correct with regard to Nitrolim? I. It is prepared by heating calcium carbide with nitrogen. II. It decomposes into ammonia in soil. III.

Consider the following statements: I. Soaps are sodium or potassium salts of long-chain carboxylic acids. II. The properties of catenation and isomerism in the element carbon are

Consider the following pairs of reactions and properties: Reactions Properties I. Fe(s) + 2HCl(aq) arrow FeCl_2(aq) + H_2(g) Fe is reductant II. Zn(s) + CuSO_4(aq) arrow

Which of the following properties of alveoli is/are helpful in gaseous exchange during respiration in human beings? I. The epithelial lining of alveoli is very thin. II. Elastic

A periscope uses two plane mirrors inclined at 45^ ^ ∘ . If the tube of the periscope is filled with a complete transparent liquid of refractive index 1.5 , then which one of the

In which one of the following groups of animals, oestrus cycle is not observed?

Which one of the following tissues in plants is usually without protoplast and regarded as dead cells?

In which cell does the first meiotic cell division take place during the process of spermatogenesis?

Consider the following statements in respect of cell and its structure: I. All cells possess cell wall. II. All cells have ribosomes present inside. III. All cells have

In which of the following parts of organisms, the process of gaseous exchange during respiration does not take place?

A light ray is falling on a face of an equilateral glass prism as shown in the figure: Which one of the following diagrams correctly shows the complete path of the ray through the

Which one of the following respiratory volumes of human lung is the lowest?

Which one of the following valves guards the opening between the right ventricle and the pulmonary artery?

Which one of the following forms of carbon is thermodynamically most stable?

Consider the following pairs: I. Pigment TiO_2 II. Drier Turpentine III. Thinner Naphthenates IV. Antiskinning agent Polyhydroxy phenol How many of the pairs given above are

Consider the following: I. AlCl_3 II. NH_3 III. BF_3 IV. FeCl_3 How many of the above are Lewis acids?

Which of the following is/are the physical test(s) employed for the manufacture of paper? I. Mechanical and strength properties II. Surface properties III. Optical properties IV.

Which part of the plant or flower contributes in the form of false fruit like apple?

Which one of the following parts of an ovule possesses reserve food?

For an ideal gas, a process is described by P = kT , where k is a constant. If the molar heat capacity for this process is C , then which one of the following is correct (where

Which one of the following statements is NOT correct?

Which one of the following particles in the nucleus of an atom was discovered by J. Chadwick?

Which one of the following statements is correct?

Which one of the following findings is NOT observed in Rutherford's Nuclear Model of Atom?

Element X forms a chloride with the formula XCl_2 , which is a solid with high melting point. X would most likely be in the same group of periodic table as

Which one of the following oxides is a neutral oxide?

Which one of the following is also known as Dry ice in its solid form?

Which one of the following statements is NOT correct?

Which one of the following statements is NOT correct?

Which one of the following statements about a compound is NOT correct?

Which one of the following nitrogen oxides may dimerize?

Which one of the following statements regarding oxidation and reduction reactions is NOT correct?

Match List I with List II and select the answer using the code given below the Lists: List I (Chemical Name) List II (Chemical Formula) A. Washing soda 1. CaOCl_2 B. Baking soda

Match List I with List II and select the answer using the code given below the Lists: List I (Physical Quantity) List II (SI Unit) A. Temperature 1. Kelvin B. Weight 2. Kilogram

Cambium is an example of

What happens when the fat and oil containing food materials are left outside for a long time?

The vector of malaria parasites is

Initial discovery of antibiotic penicillin was done by

Which is the correct base pairing found in a normal DNA molecule?

Vitamin B1 is also known as

An object is placed between infinity and the pole (P) of a convex mirror. The position of the image is

Which of the following pairs is/are correctly matched? 1. Malaria : Mycobacterium 2. TB : Plasmodium Select the answer using the code given below:

The work done in moving a charge of 2 coulomb (C) from point A to point B is 24 J. What is the potential difference between A and B?

The universal constant of gravitation G has the unit

The frequency (f ), wavelength (λ ) and speed (v ) of a sound wave are related as

The length of a simple pendulum is increased four times to its previous value while the mass is doubled. What is the ratio of the new and previous time period of the pendulum?