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Question

Compound E on long standing slowly converts into yellow, brown, and finally black to the formation of:
  1. Hg(NH2)Cl+Hg
  2. Ag2S
  3. HgS
  4. Hg2S

A
Hg2S
B
Ag2S
C
HgS
D
Hg(NH2)Cl+Hg
Solution
Verified by Toppr

The correct option is B Ag2S
White precipitate changes to yellow, brown and finally becomes black
S2O23+2Ag+Ag2S2O3white;Ag2S2O3+H2OAg2Sblack+H2SO4
2AgNO3450oC−−2Ag+2NO2+O2
Ag++2CN[Ag(CN)2]+I

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