Analytical Chemistry Question 119

Question: $ H_2S $ is passed through an acidified solution of $ Ag, $ $ Cu $ and $ Zn $ . Which forms precipitate

[BHU 1998]

Options:

A) $ Ag $

B) $ Zn $

C) $ Cu $

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

$ C{u^{2+}}+H_2S\underset{\text{black ppt}\text{.}}{\mathop{\to CuS\downarrow }} $