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CBSE Class 10 Science 2020 — Paper 31/C/1

80 marks · 3 hours · 30 questions (39 with the OR choices)

37 of its 39 questions also appear in 31/C/2, 31/C/3 and other papers; 2 are only in this paper.

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Questions 1–2 · 1 mark each

  1. Q1 1 mark

    Also in 31/C/3 (Q1)

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  2. Q2 1 mark

    Also in 31/C/2 (Q2)

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Questions 3–4 · 4 marks each

  1. Q3 4 marks

    Also in 31/C/2 (Q3), 31/C/3 (Q3)

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  2. Q4 4 marks

    Also in 31/C/2 (Q4), 31/C/3 (Q4)

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Questions 5–14 · 1 mark each

  1. Q5(a) 1 mark

    Also in 31/C/3 (Q7(a))

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    OR
    Q5(b) 1 mark

    Also in 31/C/3 (Q7(b))

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  2. Q6 1 mark

    Also in 31/C/3 (Q5)

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  3. Q7 1 mark

    Also in 31/C/2 (Q10), 31/C/3 (Q6)

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  4. Q8 1 mark

    Also in 31/C/2 (Q7)

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  5. Q9(a) 1 mark

    Also in 31/C/2 (Q12(a))

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    OR
    Q9(b) 1 mark

    Also in 31/C/2 (Q12(b))

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  6. Q10(a) 1 mark

    Also in 31/C/2 (Q8(a))

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    OR
    Q10(b) 1 mark

    Also in 31/C/2 (Q8(b))

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  7. Q11 1 mark

    Also in 31/C/3 (Q12)

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  8. Q12 1 mark

    Also in 31/C/2 (Q9), 31/C/3 (Q11)

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  9. Q13 1 mark

    Also in 31/C/3 (Q13)

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  10. Q14 1 mark

    Also in 31/C/2 (Q14)

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Questions 15–24 · 3 marks each

  1. Q15 3 marks

    Also in 31/4/1 (Q15(b)), 31/4/3 (Q18(b)), 31/C/3 (Q17)

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  2. Q16 3 marks

    Also in 31/C/2 (Q19)

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  3. Q17(a) 3 marks

    Also in 31/C/2 (Q18(a)), 31/C/3 (Q18(a))

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    OR
    Q17(b) 3 marks

    Also in 31/C/2 (Q18(b)), 31/C/3 (Q18(b))

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  4. Q18 3 marks

    Also in 31/C/2 (Q20), 31/C/3 (Q15)

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  5. Q19 3 marks

    Also in 31/C/2 (Q17)

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  6. Q20 3 marks

    Also in 31/C/2 (Q16), 31/C/3 (Q22)

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  7. Q21(a) 3 marks

    Also in 31/C/3 (Q23(a))

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    OR
    Q21(b) 3 marks

    Also in 31/C/3 (Q23(b))

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  8. Q22 3 marks

    Also in 31/C/3 (Q20)

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  9. Q23(a) 3 marks

    Also in 31/C/2 (Q24(a)), 31/C/3 (Q21(a))

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    OR
    Q23(b) 3 marks

    Also in 31/C/2 (Q24(b)), 31/C/3 (Q21(b))

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  10. Q24 3 marks

    Also in 31/C/2 (Q23)

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Questions 25–30 · 5 marks each

  1. Q25(a) 5 marks

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    Q25(b) 5 marks

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  2. Q26 5 marks

    Also in 31/C/2 (Q29)

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  3. Q27(a) 5 marks

    Also in 31/C/2 (Q30(a)), 31/C/3 (Q29(a))

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    OR
    Q27(b) 5 marks

    Also in 31/C/2 (Q30(b)), 31/C/3 (Q29(b))

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  4. Q28 5 marks

    Also in 31/C/2 (Q28), 31/C/3 (Q30)

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  5. Q29(a) 5 marks

    Also in 31/C/2 (Q27(a)), 31/C/3 (Q27(a))

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    Q29(b) 5 marks

    Also in 31/C/2 (Q27(b)), 31/C/3 (Q27(b))

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  6. Q30 5 marks

    Also in 31/C/2 (Q26), 31/C/3 (Q28)

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Other 2020 papers

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