A) \[CuS>ZnS>N{{a}_{2}}S\]
B) \[ZnS>N{{a}_{2}}S>CuS\]
C) \[N{{a}_{2}}S>CuS>ZnS\]
D) \[N{{a}_{2}}S>ZnS>CuS\]
Correct Answer: D
Solution :
Alkali metal salts are usually more soluble than the salts of transition metals. Also \[CuS\]is less soluble than \[ZnS\]because of \[3{{d}^{9}}\] configuration of \[C{{u}^{2+}}\]Hence the order of solubility is \[N{{a}_{2}}S>ZnS>CuS\]You need to login to perform this action.
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