The colour of copper sulphide is (a) Blue (b) Black (c) Red (d) Green

The colour of copper sulphide is________.

(a) Blue

(b) Black

(c) Red

(d) Green

Expert Solution

Answer : (b) Black

Explanation :

Copper sulfide main mineral ores are Cu2S and CuS. After purification or some chemical reaction we can obtain black or gray color lumpes.

When the hydrogen sulphide gas is reacted with the blue solution of copper sulphate , a black/gray ppt is obtained and ppt is nothing but copper sulphide. Some by product is also form.

b) Black

Rakesh answered 2 years ago

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