Cuprous compounds such as $$CuCl, CuCN$$ and $$CuSCN$$ are the only salts stable in $${H_2}O$$ due to
A.
high hydration energy of $$C{u^ + }$$ $$ions$$
B.
their inherent tendency not to disproportionate
C.
diamagnetic nature
D.
insolubility in water
Answer :
high hydration energy of $$C{u^ + }$$ $$ions$$
Solution :
Cuprous compound contains $$C{u^ + }$$ $$ion$$ which has small size, so the hydration is maximum and hence, the system has lower energy which result in stability of the compounds.
Releted MCQ Question on Inorganic Chemistry >> D and F Block Elements
Releted Question 1
When same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volume of hydrogen evolved is