Among CaH2, NH3, NaH and B2H6 which are covalent hydrides? (a) NH3 and B2H6 (b) NaH and CaH2 (c) NaH and NH3 (d) CaH2 and B2H6

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

Hydrogen

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08/12/2021 10:53 am

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Palak23

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

(a) NH₃ and B₂H₆

(b) NaH and CaH₂

(d) CaH₂ and B₂H₆

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08/12/2021 10:54 am

Reyana09

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Correct answer: (a) NH₃ and B₂H₆

Explanation:

N and B belong to p-block and since the electronegativity difference between these elements and H is very less, they form covalent hydrides.

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