Analytical Chemistry Question 45

Question: A precipitate of the following would be obtained when $ HCl $ is added to a solution of stannous sulphide $ (SnS) $ in yellow ammonium sulphide

[CPMT 1977; NCERT 1974]

Options:

A) $ SnS $

B) $ SnS_2 $

C) $ Sn_2S_2 $

D) $ {{(NH_4)}_2}SnS_3 $

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Answer:

Correct Answer: B

Solution:

$ SnS+{{(NH_4)}_2}S_2\xrightarrow{HCl}{{(NH_4)}_2}S+SnS_2 $