Question
For two ionic solids $$CaO$$ and $$KI$$ , identify the wrong statement among the following.
A.
Lattice energy of $$CaO$$ is much larger than that of $$KI$$
B.
$$KI$$ is soluble in benzene
C.
$$KI$$ has lower melting point
D.
$$CaO$$ has higher melting point
Answer :
$$KI$$ is soluble in benzene
Solution :
$$KI$$ is ionic compound, so it is not soluble in non-polar solvent ( i.e. dipole moment $$\left( \mu \right)$$ for benzene $$ = 0$$ ).