The D And F Block Elements Ques 55
55. Cuprous compounds such as $CuCl, CuCN$ and $CuSCN$ are the only salts stable in water due to their low solubility and tendency to hydrolyze
[1996]
(a) high hydration energy of $Cu^{+}$ions
(b) their inherent tendency to not be disproportionate
(c) diamagnetic nature
(d) insolubility in water
Show Answer
Solution:
- (d) Although $Cu^{2+}$ state is more stable than $Cu^{+}$, $Cu^{+}$ ion can be stabilized by formation of insoluble substances such as $CuCl, CuCN$ and $CuSCN$. $Cu^{2+}$ is more stable than $Cu^{+}$ because of its high hydration energy.
BETA
