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CBSE Class 10 Science 2018 — Paper 31/3/C

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

All 33 of its questions also appear in 31/1/C or 31/2/C.

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Questions 1–2 · 1 mark each

  1. Q1 1 mark

    Also in 31/1/C (Q1), 31/2/C (Q2)

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  2. Q2 1 mark

    Also in 31/1/C (Q2), 31/2/C (Q1)

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Questions 3–5 · 2 marks each

  1. Q3 2 marks

    Also in 31/1/C (Q4), 31/2/C (Q3)

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  2. Q4 2 marks

    Also in 31/1/C (Q3), 31/2/C (Q5)

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  3. Q5 2 marks

    Also in 31/1/C (Q5), 31/2/C (Q4)

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Questions 6–15 · 3 marks each

  1. Q6 3 marks

    Also in 31/1/C (Q9), 31/2/C (Q15)

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  2. Q7 3 marks

    Also in 31/1/C (Q15), 31/2/C (Q8)

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  3. Q8 3 marks

    Also in 31/1/C (Q10), 31/2/C (Q6)

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  4. Q9(a) 3 marks

    Also in 31/1/C (Q12(a)), 31/2/C (Q14(a))

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    OR
    Q9(b) 3 marks

    Also in 31/1/C (Q12(b)), 31/2/C (Q14(b))

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  5. Q10(a) 3 marks

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

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    OR
    Q10(b) 3 marks

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

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  6. Q11 3 marks

    Also in 31/1/C (Q13), 31/2/C (Q7)

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  7. Q12 3 marks

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

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  8. Q13 3 marks

    Also in 31/1/C (Q6), 31/2/C (Q10)

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  9. Q14 3 marks

    Also in 31/1/C (Q8), 31/2/C (Q11)

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  10. Q15(a) 3 marks

    Also in 31/1/C (Q11(a)), 31/2/C (Q13(a))

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    OR
    Q15(b) 3 marks

    Also in 31/1/C (Q11(b)), 31/2/C (Q13(b))

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Questions 16–21 · 5 marks each

  1. Q16 5 marks

    Also in 31/1/C (Q21), 31/2/C (Q17)

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  2. Q17(a) 5 marks

    Also in 31/1/C (Q18(a)), 31/2/C (Q16(a))

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    OR
    Q17(b) 5 marks

    Also in 31/1/C (Q18(b)), 31/2/C (Q16(b))

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  3. Q18 5 marks

    Also in 31/1/C (Q16), 31/2/C (Q19)

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  4. Q19 5 marks

    Also in 31/1/C (Q20), 31/2/C (Q18)

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  5. Q20 5 marks

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

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  6. Q21(a) 5 marks

    Also in 31/1/C (Q17(a)), 31/2/C (Q21(a))

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    OR
    Q21(b) 5 marks

    Also in 31/1/C (Q17(b)), 31/2/C (Q21(b))

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Questions 22–27 · 2 marks each

  1. Q22 2 marks

    Also in 31/1/C (Q23), 31/2/C (Q24)

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  2. Q23 2 marks

    Also in 31/1/C (Q25), 31/2/C (Q22)

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  3. Q24 2 marks

    Also in 31/1/C (Q27), 31/2/C (Q26)

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  4. Q25(a) 2 marks

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

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    OR
    Q25(b) 2 marks

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

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  5. Q26 2 marks

    Also in 31/1/C (Q24), 31/2/C (Q27)

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  6. Q27 2 marks

    Also in 31/1/C (Q22), 31/2/C (Q25)

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