Equilibrium - Result Question 73
####77. Identify the correct order of solubility in aqueous medium:
[NEET 2013]
(a) $ZnS>Na_2 S>CuS$
(b) $Na_2 S>CuS>ZnS$
(c) $Na_2 S>ZnS>CuS$
(d) $CuS>ZnS>Na_2 S$
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Solution:
- (c) Solubility of alkali metal is maximum among the following. Among $ZnS(1.7 \times 10^{-5}) & CuS$ $(8 \times 10^{-37}) ZnS$ has higher value of $K _{s p}$.
