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Question

Among CaH2,NH3,NaH and B2H6, which are covalent hydrides?

A
NH3 and B2H6
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B
NaH and CaH2
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C
NaH and NH3
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D
CaH2 and B2H6
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Solution

The correct option is A NH3 and B2H6
NH3 and B2H6 are the covalent hydrides and CaH2 and NaH are the ionic hydride.
N and B form covalent hydride as they have high electronegativity and small size.

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