Analytical Chemistry Question 55

Question: Which of the following radicals will not be precipitated by passing $ H_2S $ in concentrated acid solution

[BHU 1986]

Options:

A) Copper

B) Antimony

C) Arsenic

D) Cadmium

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Answer:

Correct Answer: D

Solution:

As cadmium belongs to the IInd group and is precipitated as sulphide and not as chloride.