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

Options

A. ` Cu FeS_ 2 `
B. `CuO `
C. `Cu_2O `
D. ` CuSO_4 `

Answer

B, C, D

Explanation

Upon heating with ` Cu _2 S`, the reagent (s) that give copper metal is/are
(a) ` Cu FeS _ 2 + Cu _ 2 S overset (Delta ) to ` No reaction
(b) ` 2 CuO overset (Delta ) to Cu _ 2 O + 1//2 O _ 2 `
(c ) ` 2 Cu _ 2 O + Cu _ 2 S to 6 Cu + SO _ 2 `
(d) ` Cu SO _ 4 overset (Delta ) to Cu O + SO _ 2 `