Among CaH_2, NH_3, NaH and B_2H_6, which are covalent hydride? [OJEE 2005]

JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Among CaH, NH, NaH and BH, which are covalent hydride? [OJEE 2005]

(A)NH and BHCorrect
(B)NaH and CaH
(C)NaH and NH
(D)CaH and BH

Answer: (A)

Solution

NaH and CaH are ionic (saline) hydrides, formed between hydrogen and highly electropositive alkali/alkaline-earth metals. NH and BH, formed between hydrogen and

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Question ID VK-137220