10th Science Revision Model Question Paper

Maximize your final score and lock in your preparation with the definitive Class 10 Science Revision Model Question Paper. Serving as a comprehensive simulated exam, this paper matches the latest weightage distribution across fundamental chapters in Physics, Chemistry, and Biology. Testing your skills under true exam conditions is critical for building stamina, mastering time management, and polishing your analytical response style. This revision template balances rapid-fire objective questions, conceptual definitions, case-based queries, and descriptive long-form explanations to give you a precise benchmark of your readiness. Identify weak spots, refine your presentation layouts, and approach your final science assessment with confidence.

X SCIENCE REVISION MODEL QUESTION PAPER - 2024

TIME: 3 HRS TOTAL MARKS: 75 M

SECTION - A • Choose the correct best answer: 12 × 1 = 12 M

1. Inertia of a body depends on
a) weight of the object b) acceleration due to gravity of the planet
c) mass of the object d) Both a & b

2. If a substance is heated or cooled, the linear expansion occurs along the axis of
a) X or −X b) Y or −Y c) both (a) and (b) d) (a) or (b)

3. If a sound wave travels with a frequency of 1.25 × 10⁴ Hz at 344 m/s, the wavelength will be
a) 27.52 m b) 275.2 m c) 0.02752 m d) 2.752 m

4. Which of the following inert gases has 2 electrons in the outermost shell.
a) He b) Ne c) Ar d) Kr

5. When pressure is increased at constant temperature the solubility of gases in liquid
a. No change b. increases c. decreases d. no reaction

6. Which of the following represents a precipitation reaction?
a. A_(s) + B_(s) → C_(s) + D_(s) b. A_(s) + B_(aq) → C_(aq) + D_(l) c. A_(aq) + B_(aq) → C_(s) + D_(aq) d. A_(aq) + B_(s) → C_(aq) + D_(l)

7. Kreb's cycle takes place in
a) chloroplast b) mitochondrial matrix c) stomata d) inner mitochondrial membrane

8. Which one is referred as "Master Gland"?
a) Pineal gland b) Pituitary gland c) Thyroid gland d) Adrenal gland

9. rDNA is a
a) vector DNA b) Circular DNA c) Recombinant of vector DNA and desired DNA d) satellite DNA

10. Root hairs are
a) cortical cell b) projection of epidermal cell c) unicellular d) both b and c

11. (IBWL) means
a) Indian Board for Wild Life b) Indian board for word life c) In board for Wild life d) all of the above

12. Root word of hydrocarbons "non-" denotes
a) 7 b) 5 c) 3 d) 9

SECTION - B • ANSWER ANY SEVEN QUESTIONS (Q.NO: 22 COMPULSORY) 7 × 2 = 14 M

13. Define dispersion of light

14. State Boyle's law

15. Define electric potential

16. Mention two cases in which there is no Doppler effect in sound?

17. Define critical mass.

18. Find the percentage of nitrogen in ammonia.

19. Give an example each:
i) gas in liquid ii) solid in liquid iii) solid in solid iv) gas in gas

20. When an aqueous solution of potassium chloride is added to an aqueous solution of silver nitrate, a white precipitate is formed. Give the chemical equation of this reaction.

21. Give the name of wheat variety having higher dietary fibre and protein.

22. How many electrons are passing per second in a circuit in which there is a current of 5 A?

SECTION - C • ANSWER ANY SEVEN QUESTIONS (Q.NO: 32 COMPULSORY) 7 × 4 = 28 M

23. State Newton's laws of motion?

24. List any five properties of light

25.
(i) What is a nuclear reactor?
(ii) Mr. Ramu is working as an X-ray technician in a hospital. But, he does not wear lead aprons. What suggestion will you give to Mr. Ramu?

26. Write notes on various factors affecting solubility

27. What is a chemical equilibrium? What are its characteristics?

28. Classify the following compounds based on the pattern of carbon chain and give their structural formula: (i) Propane (ii) Benzene (iii) Cyclobutane (iv) Furan

29. Differentiate the following:
a) Monocot root and Dicot root
b) Aerobic and Anaerobic respiration

30. Explain the male reproductive system of rabbit with a labelled diagram

31. What is transpiration? Give the importance of transpiration.

32. With a neat labelled diagram describe the parts of a typical angiospermic ovule.

SECTION - D • ANSWER ALL QUESTIONS: 3 × 7 = 21 M

33. a) Compare the properties of alpha, beta and gamma radiations

(or)

b) (a) State Joule's law of heating. (b) An alloy of nickel and chromium is used as the heating element. Why? (c) How does a fuse wire protect electrical appliances?

34. a) Derive the relationship between Relative molecular mass and Vapour density.

(or)

b) How many grams are there in the following?
      (i) 2 moles of hydrogen molecule, H₂
      (ii) 3 moles of chlorine molecule, Cl₂
      (iii) 5 moles of sulphur molecule, S₈
      (iv) 4 moles of phosphorous molecule, P₄

35. a) 'A' is a cylindrical structure that begins from the lower end of medulla and extends downwards. It is enclosed in bony cage 'B' and covered by membranes 'C'. As many as 'D' pairs of nerves arise from the structure 'A'.
(i) What is A?
(ii) Name (a) bony cage 'B' and (b) membranes 'C'
(iii) How much is D?

(or)

b) What would be expected to happen if:
      (a) Gibberellin is applied to rice seedlings.
      (b) A rotten fruit gets mixed with unripe fruits.
      (c) When cytokinin is not added to culture medium.