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Q. The melting points of (i) BeCl$_2$ (ii) CaCl$_2$ and (iii) HgCl$_2 $follows the order

WBJEEWBJEE 2019Chemical Bonding and Molecular Structure

Solution:

Melting,Point,$HgCl_{2},$,<$,BeCl_{2}$,<$CaCl_{2}$,
,Covalent,character,$\alpha\frac{1}{M.P.}$,
Covalent,character,:$HgCl_{2}$,>$BeCl_{2}$,>$CaCl_{2}$