Which of the following orders regarding the melting point of alkali metal chlorides is true?

Which of the following orders regarding the melting point of alkali metal chlorides is true?

A
LiCl > NaCl > KCl
B
$LiCl < NaCl < KCl$
C
LiCl < KCl < NaCl
D
LiCl > NaCl < KCl

Solution:

Melting points of chlorides of the metals of first group first increases from Li to Na followed by decrease.

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