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Question
The solubility product of CuS,Ag2S and HgS are 10−37,10−44 and 10−54 respectively. The solubility of these sulphides will be in the order:
The solubility product of CuS,Ag2S and HgS are 10−37,10−44 and 10−54 respectively. The solubility of these sulphides will be in the order:
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Solution
The correct option is D Ag2S>CuS>HgS
CuS⟹S2=10−37⟹S=3.16×10−19
Ag2S⟹4S3=10−44⟹S=1.357×10−15
HgS⟹S2=10−54⟹S=1.0×10−27
Order of Solubility is: Ag2S>CuS>HgS
CuS⟹S2=10−37⟹S=3.16×10−19
Ag2S⟹4S3=10−44⟹S=1.357×10−15
HgS⟹S2=10−54⟹S=1.0×10−27
Order of Solubility is:
Ag2S>CuS>HgS
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