Metal hydrides are ionic, covalent or molecular in nature. Among LiH, NaH, KH, RbH, CsH, the correct order of increasing ionic character is

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LiH > NaH > CsH > KH > RbH

LiH < NaH < KH < RbH < CsH

RbH > CsH > NaH > KH > LiH

NaH > CsH > RbH > LiH > KH

answer is B.

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Detailed Solution

Metal hydrides are ionic in natureAs the size of metal ↑es metallic nature ↑es,Therefore ionic nature of hydride ↑es.

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