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Melting points of chlorides of alkali me...

Melting points of chlorides of alkali metals follow the order

A

LiCl `gt` CsCI `gt` RbCl `gt` NaCl `gt` KCl

B

KCl `gt` RbCl `gt` CsCl `gt` LiCl `gt` NaCl

C

LiCl `gt` NaCl `gt` KCl `gt` RbCl `gt` CsCl

D

NaCl `gt` KCl `gt` RbCl `gt` CsCl `gt` LiCl.

Text Solution

Verified by Experts

The correct Answer is:
D
Melting points of chlorides of alkali metals follows the order
`NaCl gt KCl gt RbCl gt CsCl gt LiCl`.
LiCl is predominantly covalent and hence its m.pt. is the lowest. Order of m.pts. Of other chlorides increases with increase in the magnitude of lattice energy.
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