Analytical Chemistry Question 84

Question: A black sulphide is formed by the action of $ H_2S $ on

[IIT 1978]

Options:

A) Cupric chloride

B) Cadmium chloride

C) Zinc chloride

D) Sodium chloride

Show Answer

Answer:

Correct Answer: A

Solution:

$ CuCl_2+H_2S\to \underset{\text{(Black ppt}\text{.)}}{\mathop{CuS}}+2HCl $