MCQ
A mixture of $ZnC{l_2}$ and $PbC{l_2}$ can be separated by
- ADistillation
- ✓Crystallization
- CSublimation
- DAdding aceitic acid
Hence, they can be separated using method of crystallization.
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$Fe ^{2+}( aq )+ S ^{2-}( aq ) \rightleftharpoons FeS ( s )$
When equal volumes of $0.06 M Fe ^{2+}( aq )$ and $0.2 M S ^{2-}( aq )$ solutions are mixed, the equilibrium concentration of $Fe ^{2+}$ (aq) is found to be $Y \times 10^{-17} M$. The value of $Y$ is. . . . .