Upon heating with Cu_2S , the reagent(s) that give copper metal is/are

JEE Advanced 2014 Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Advanced 2014

Upon heating with , the reagent(s) that give copper metal is/are

(A)
(B)CuOCorrect
(C)Correct
(D)Correct

Answer: (B),(C),(D)

Solution

Copper is obtained by self-reduction: the sulphide is the reducing agent and an oxygen-containing copper compound is the oxidant, with given off. (C); Cu_2S$ + 2CuO

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Question ID VK-026270