Analytical ChemistryHard
Question
In II B group of basic radicals, the yellow precipitate (s) is/are given by :
Options
A.As3+
B.Sb3+
C.Sn4+
D.Sn2+
Solution
2As3+ + 3S2- 
As2S3 ↓ (yellow) ; 2Sn4+ + 2S2- 
SnS2 ↓ (yellow).
SnS is brown and Sb2S3 is orange coloured precipitates.
As2S3 ↓ (yellow) ; 2Sn4+ + 2S2- SnS2 ↓ (yellow).SnS is brown and Sb2S3 is orange coloured precipitates.
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