Question

Which of the following statements is incorrect? 

(a) Silver glance mainly contains silver sulphide 

(b) Gold is found in native state

(c) Zinc blende mainly contains zinc chloride

(d) Copper pyrites also contain \(Fe_{2}S_{3}\)

Answer 1

Correct option is (c) Zinc blende mainly contains zinc chloride

The chemical formula of silver glance is Ag₂​S and mainly contains silver sulphide.

Hence, given statement is correct.

Gold is found in native state due to its inertness. 

Hence, given statement is correct.

Zinc blende is ZnS and not ZnCl₂​. 

Hence, given statement is incorrect.

Copper Pyrites contain CuFeS_2​ and Fe₂​S₃​. 

Hence, given statement is correct.