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CBSE Class 10 Science 2023 — Paper 31/C/3

80 marks · 3 hours · 39 questions (45 with the OR choices)

34 of its 45 questions also appear in 31/C/1 or 31/C/2; 11 are only in this paper.

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Questions 1–20 · 1 mark each

  1. Q1 1 mark

    Also in 31/C/1 (Q6), 31/C/2 (Q2)

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  2. Q2 1 mark

    Also in 31/C/1 (Q7), 31/C/2 (Q12)

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  3. Q3 1 mark

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  4. Q4 1 mark

    Also in 31/C/1 (Q1), 31/C/2 (Q3)

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  5. Q5 1 mark

    Also in 31/C/1 (Q2), 31/C/2 (Q4)

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  6. Q6 1 mark

    Also in 31/C/1 (Q3), 31/C/2 (Q6)

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  7. Q7 1 mark

    Also in 31/C/1 (Q4), 31/C/2 (Q1)

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  8. Q8 1 mark

    Also in 31/C/1 (Q5)

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  9. Q9 1 mark

    Also in 31/C/1 (Q10), 31/C/2 (Q15)

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  10. Q10 1 mark

    Also in 31/C/1 (Q9), 31/C/2 (Q14)

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  11. Q11 1 mark

    Also in 31/C/1 (Q15), 31/C/2 (Q10)

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  12. Q12 1 mark

    Also in 31/C/1 (Q16), 31/C/2 (Q11)

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  13. Q13 1 mark

    Also in 31/C/1 (Q11), 31/C/2 (Q16)

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  14. Q14 1 mark

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  15. Q15 1 mark

    Also in 31/C/1 (Q12), 31/C/2 (Q7)

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  16. Q16 1 mark

    Also in 31/C/1 (Q13), 31/C/2 (Q8)

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  17. Q17 1 mark

    Also in 31/C/1 (Q20), 31/C/2 (Q19)

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  18. Q18 1 mark

    Also in 31/C/1 (Q17)

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  19. Q19 1 mark

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  20. Q20 1 mark

    Also in 31/C/1 (Q18)

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Questions 21–26 · 2 marks each

  1. Q21 2 marks

    Also in 31/C/1 (Q23), 31/C/2 (Q26)

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  2. Q22 2 marks

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  3. Q23 2 marks

    Also in 31/C/1 (Q26), 31/C/2 (Q23)

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  4. Q24(a) 2 marks

    Also in 31/C/1 (Q21(a)), 31/C/2 (Q24(a))

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    OR
    Q24(b) 2 marks

    Also in 31/C/1 (Q21(b)), 31/C/2 (Q24(b))

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  5. Q25 2 marks

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  6. Q26(a) 2 marks

    Also in 31/C/1 (Q24(a)), 31/C/2 (Q21(a))

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    OR
    Q26(b) 2 marks

    Also in 31/C/1 (Q24(b)), 31/C/2 (Q21(b))

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Questions 27–33 · 3 marks each

  1. Q27 3 marks

    Also in 31/C/1 (Q30), 31/C/2 (Q28)

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  2. Q28(a) 3 marks

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    OR
    Q28(b) 3 marks

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  3. Q29 3 marks

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  4. Q30(a) 3 marks

    Also in 31/C/1 (Q32(a)), 31/C/2 (Q30(a))

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    OR
    Q30(b) 3 marks

    Also in 31/C/1 (Q32(b)), 31/C/2 (Q30(b))

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  5. Q31 3 marks

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  6. Q32 3 marks

    Also in 31/C/1 (Q27)

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  7. Q33 3 marks

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Questions 34–36 · 5 marks each

  1. Q34(a) 5 marks

    Also in 31/C/1 (Q34(a)), 31/C/2 (Q35(a))

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    OR
    Q34(b) 5 marks

    Also in 31/C/1 (Q34(b)), 31/C/2 (Q35(b))

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  2. Q35(a) 5 marks

    Also in 31/C/1 (Q35(a)), 31/C/2 (Q34(a))

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    OR
    Q35(b) 5 marks

    Also in 31/C/1 (Q35(b)), 31/C/2 (Q34(b))

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  3. Q36 5 marks

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Questions 37–39 · 4 marks each

  1. Q37 4 marks

    Also in 31/C/1 (Q37), 31/C/2 (Q37)

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  2. Q38 4 marks

    Also in 31/C/1 (Q38), 31/C/2 (Q38)

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  3. Q39 4 marks

    Also in 31/C/1 (Q39), 31/C/2 (Q39)

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