JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Ionic hydrides are formed by:

(A)Transition metals
(B)Elements of very high electropositivityCorrect
(C)Elements of very low electropositivity
(D)Metalloids

Answer: (B)

Solution

Ionic (saline) hydrides form when hydrogen combines with highly electropositive metals (group 1 and the heavier group 2 metals), which readily transfer an electron to hydrogen to form the discrete hydride ion H

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Question ID VK-137292