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CBSE Class 10 Science 2018 — Paper 31/1/C

80 marks · 3 hours · 27 questions (33 with the OR choices)

All 33 of its questions also appear in 31/2/C or 31/3/C.

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Questions 1–2 · 1 mark each

  1. Q1 1 mark

    Also in 31/2/C (Q2), 31/3/C (Q1)

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  2. Q2 1 mark

    Also in 31/2/C (Q1), 31/3/C (Q2)

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Questions 3–5 · 2 marks each

  1. Q3 2 marks

    Also in 31/2/C (Q5), 31/3/C (Q4)

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  2. Q4 2 marks

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

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  3. Q5 2 marks

    Also in 31/2/C (Q4), 31/3/C (Q5)

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Questions 6–15 · 3 marks each

  1. Q6 3 marks

    Also in 31/2/C (Q10), 31/3/C (Q13)

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  2. Q7(a) 3 marks

    Also in 31/2/C (Q12(a)), 31/3/C (Q10(a))

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    OR
    Q7(b) 3 marks

    Also in 31/2/C (Q12(b)), 31/3/C (Q10(b))

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  3. Q8 3 marks

    Also in 31/2/C (Q11), 31/3/C (Q14)

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  4. Q9 3 marks

    Also in 31/2/C (Q15), 31/3/C (Q6)

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  5. Q10 3 marks

    Also in 31/2/C (Q6), 31/3/C (Q8)

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  6. Q11(a) 3 marks

    Also in 31/2/C (Q13(a)), 31/3/C (Q15(a))

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    OR
    Q11(b) 3 marks

    Also in 31/2/C (Q13(b)), 31/3/C (Q15(b))

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  7. Q12(a) 3 marks

    Also in 31/2/C (Q14(a)), 31/3/C (Q9(a))

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    OR
    Q12(b) 3 marks

    Also in 31/2/C (Q14(b)), 31/3/C (Q9(b))

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  8. Q13 3 marks

    Also in 31/2/C (Q7), 31/3/C (Q11)

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  9. Q14 3 marks

    Also in 31/2/C (Q9), 31/3/C (Q12)

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  10. Q15 3 marks

    Also in 31/2/C (Q8), 31/3/C (Q7)

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Questions 16–21 · 5 marks each

  1. Q16 5 marks

    Also in 31/2/C (Q19), 31/3/C (Q18)

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  2. Q17(a) 5 marks

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

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    OR
    Q17(b) 5 marks

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

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  3. Q18(a) 5 marks

    Also in 31/2/C (Q16(a)), 31/3/C (Q17(a))

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    OR
    Q18(b) 5 marks

    Also in 31/2/C (Q16(b)), 31/3/C (Q17(b))

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  4. Q19 5 marks

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

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  5. Q20 5 marks

    Also in 31/2/C (Q18), 31/3/C (Q19)

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  6. Q21 5 marks

    Also in 31/2/C (Q17), 31/3/C (Q16)

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Questions 22–27 · 2 marks each

  1. Q22 2 marks

    Also in 31/2/C (Q25), 31/3/C (Q27)

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  2. Q23 2 marks

    Also in 31/2/C (Q24), 31/3/C (Q22)

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  3. Q24 2 marks

    Also in 31/2/C (Q27), 31/3/C (Q26)

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  4. Q25 2 marks

    Also in 31/2/C (Q22), 31/3/C (Q23)

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  5. Q26(a) 2 marks

    Also in 31/2/C (Q23(a)), 31/3/C (Q25(a))

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    OR
    Q26(b) 2 marks

    Also in 31/2/C (Q23(b)), 31/3/C (Q25(b))

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  6. Q27 2 marks

    Also in 31/2/C (Q26), 31/3/C (Q24)

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