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Chemistry
Which of the following is soluble in yellow ammonium sulphide?
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Q. Which of the following is soluble in yellow ammonium sulphide?
BITSAT
BITSAT 2012
A
CuS
17%
B
CdS
17%
C
SnS
67%
D
PbS
0%
Solution:
The sulfides of $As ^{3+}, As ^{5+}, Sb ^{3+}, Sb ^{5+}, Sn ^{2+}, Sn ^{4+}$ are soluble in yellow ammonium sulfide where they form polysulphide complexes.