NEET | 2018Chemical Kinetics and Nuclear ChemistryHard

Question

Among CaH2, BeH2, BaH2, the order of ionic character is

Options

A.

BeH2 < CaH2 < BaH2

B.

CaH2 < BeH2 < BaH2

C.

BeH2 < BaH2 < CaH2

D.

BaH2 < BeH2 < CaH2

Solution

BeH2 < CaH2 < BaH2 Smaller the size of cation, more will be its polarising power. Hence BeH2 will be least ionic.

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