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Question

Which of the following hydrides are ionic?

A
CaH2
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B
BaH2
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C
SrH2
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D
BeH2
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Solution

The correct options are
A CaH2
B BaH2
C SrH2
BeH2 is covalent due to small size and high charge density of Be(II) ion whereas CaH2, BaH2 and SrH2 are ionic.

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