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Which of the alkali metal chlorides is e...

Which of the alkali metal chlorides is expected to have the highest melting point ?

A

LiCl

B

NaCl

C

KCl

D

RbCl

Text Solution

Verified by Experts

The correct Answer is:
A
The lattice energy of alkali metal halides decreases down the group due to increase in size of alkali metals.
Thus `LiCl` has higher `m.pt`.
`{:(LiCl,NaCl,KCl,RbCl,CsCl),(883^@C,808^@C,772^@C,717^@C,645^@C):}`.
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