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D and F Block Elements question

2014 · Shift 1 · Q1
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  5. /2014 · Shift 1 · Q1

D and F Block Elements question

2014 · Shift 1 · Q1

JEE AdvancedChemistryD and F Block ElementsMultiple correct+3 / −1
Upon heating with Cu2SCu_2SCu2​S, the reagent(s) that give copper metal is/are
  1. A
    CuFeS2CuFeS_2CuFeS2​
  2. B
    CuO
  3. C
    Cu2OCu_2OCu2​O
  4. D
    CuSO4CuSO_4CuSO4​
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