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Metal hydrides are ionic, covalent or molecular in nature. Among LiH, NaH, KH, RbH, CsH the correct order of increasing ionic character is
A. `LiHgtNaHgtCsHgtKHgtRbH`
B. `LiHltNaHltKHltRbHltCsH`
C. `RbHgtCsHgtNaHgtKHgtLiH`
D. `NaHgtCsHgtRbHgtLiHgtKH`

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Correct Answer - B
larger is the size of cation more is the ionic character.

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