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HPSC 2026 — Science & Technology Questions with Answers

All 14 Science & Technology previous-year questions from HPSC 2026, each with the correct answer and a full explanation. Practise them as a free, timed mock test with instant scoring.

1. Q1.Space Technology

   Given below are two statements: Statement I : ISRO launched the XPoSat mission in January 2025 to study cosmic X-ray sources. Statement II : XPoSat is India's first dedicated mission to study X-ray polarization. In the light of the above statements, choose the correct answer from the options given below:

   • a)Both Statement I and Statement II are true.
   • b)Both Statement I and Statement II are false.
   • c)Statement I is true but Statement II is false.
   • d)Statement I is false but Statement II is true.
   • e)Question not attempted
2. Q2.Classical Mechanics

   Consider the following statements: 1. An object moving with constant velocity has zero net force acting on it. 2. Action and reaction forces act on the same body. 3. A large force acting for a short time can produce a large change in momentum. How many of the statements given above are correct?

   • a)Only one
   • b)Only two
   • c)All three
   • d)None
   • e)Question not attempted
3. Q3.Human Eye

   Consider the following pairs : 1. If ciliary muscles : focal length of the are relaxed eye lens increases 2. If eye lens : enables us to see becomes thicker nearby objects clearly 3. For a young adult : near point is about with normal vision 25 cm How many of the above pairs are correctly matched?

   • a)Only one pair
   • b)Only two pairs
   • c)All three pairs
   • d)None of the pairs
   • e)Question not attempted
4. Q4.Sound Waves

   Consider the following statements: 1. The loudness of a sound is determined basically by its frequency. 2. The frequency of the sound wave does not change when it travels from one medium to another. 3. Audible range of the average human ear extends from about 20 Hz to 20 kHz. How many of the statements given above are correct?

   • a)Only one
   • b)Only two
   • c)All three
   • d)None
   • e)Question not attempted
5. Q5.Motion

   Consider the following pairs: 1. Horizontal velocity : Zero acceleration - time graph 2. A linear velocity - : Uniform motion time graph with non-zero slope 3. Curved distance - : Non-uniform time graph motion How many of the above pairs are correctly matched?

   • a)Only one pair
   • b)Only two pairs
   • c)All three pairs
   • d)None of the pairs
   • e)Question not attempted
6. Q6.Electricity

   Given below are two statements: Statement I : If a copper and a nichrome wire of same length and same area of cross-section carry the same current for same time at room temperature then both will produce the same amount of heat. Statement II : If current in a conductor is doubled and time is halved then the heat produced becomes double. In the light of the above statements, choose the correct answer from the options given below:

   • a)Both Statement I and Statement II are true.
   • b)Both Statement I and Statement II are false.
   • c)Statement I is true but Statement II is false.
   • d)Statement I is false but Statement II is true.
   • e)Question not attempted
7. Q7.Acids, Bases and Salts

   Given below are two statements: Statement I : For mixing concentrated nitric acid and water, water must always be added slowly to concentrated acid. Statement II : For dilution, solvent is required to be added to the concentrated solution. In the light of the above statements, choose the correct answer from the options given below:

   • a)Both Statement I and Statement II are true.
   • b)Both Statement I and Statement II are false.
   • c)Statement I is true but Statement II is false.
   • d)Statement I is false but Statement II is true.
   • e)Question not attempted
8. Q8.Chemistry in Everyday Life

   Consider the following information: Substance Chemical Formula Use 1. Bleaching Powder CaO₂Cl₂ Making drinking water free of germs 2. Baking Soda NaHCO₃ Soda-acid fire extinguisher 3. Washing Soda Na₂CO₃ Removing permanent hardness of water In how many of the above rows is the given information correctly matched?

   • a)Only one
   • b)Only two
   • c)All three
   • d)None
   • e)Question not attempted
9. Q9.Carbon and its Compounds

   Given below are two statements: Statement I: Denatured alcohol contains small quantity of methanol, a poisonous substance. Statement II: Methanol is poisonous because it gets oxidized to methanoic acid in liver, which coagulates the protoplasm. In the light of the above statements, choose the correct answer from the options given below:

   • a)Both Statement I and Statement II are true.
   • b)Both Statement I and Statement II are false.
   • c)Statement I is true but Statement II is false.
   • d)Statement I is false but Statement II is true.
   • e)Question not attempted
10. Q10.Colloidal Solutions

    Consider the following information: Column-A Column-B Column-C --- --- --- 1. Smoke Colloid Gas in solid 2. Milk Emulsion Homogeneous 3. Pumice stone Foam Heterogeneous In how many of the above rows is the given information correctly matched?

    • a)Only one
    • b)Only two
    • c)All three
    • d)None
    • e)Question not attempted
11. Q11.Chemistry

    Given below are two statements: Statement I: All metals evolve hydrogen gas upon reaction with hydrochloric acid. Statement II: Hydrogen carbonates of all metals except sodium, react with acids to give a corresponding salt, carbon dioxide and water. In the light of the above statements, choose the correct answer from the options given below:

    • a)Both Statement I and Statement II are true.
    • b)Both Statement I and Statement II are false.
    • c)Statement I is true but Statement II is false.
    • d)Statement I is false but Statement II is true.
    • e)Question not attempted
12. Q12.Human Biology

    Consider the following statements: 1. Dental caries or tooth decay begins when bacteria acting on sugars produce alcohol that soften or demineralise the enamel. 2. Dental caries or tooth decay begins when bacteria acting on sugars produce acetone that soften or demineralise the enamel. 3. Dental caries or tooth decay begins when bacteria acting on sugars produce acids that softens or demineralise the enamel. How many of the statements given above are correct?

    • a)Only one
    • b)Only two
    • c)All three
    • d)None
    • e)Question not attempted
13. Q13.Biology

    Consider the following pairs: 1. Mosquito : Egg, Larva, Pupa & Adult 2. Silk moth : Egg, Larva, Pupa and Adult 3. Cockroaches : Egg, Nymph, Pupa and Adult How many of the above pairs are correctly matched?

    • a)Only one pair
    • b)Only two pairs
    • c)All three pairs
    • d)None of the pairs
    • e)Question not attempted
14. Q14.Human Biology

    Consider the following pairs: 1. Natural : Lactational contraceptive Amenorrhea 2. Barrier method : Progestasert 3. Hormone Releasing : Saheli IUDs How many of the above pairs are correctly matched?

    • a)Only one pair
    • b)Only two pairs
    • c)All three pairs
    • d)None of the pairs
    • e)Question not attempted