The correct set from the following in which both pairs are in correct order of melting point is:
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a
LiF>LiCl;MgO>NaCl
b
LiF>LiCl;NaCl>MgO
c
LiCl>LiF>;NaCl>MgO
d
LiCl>LiF>;MgO>NaCl
answer is A.
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Detailed Solution
LiF > LiCl, Due to the small size of Lithium ion it has high polarization power.MgO > NaCl , Due to high charge on Magnesium than Sodium, it has more polarisation power.