1.

Metal hydrides are ionic covalent or molecularin nature amongLiH ,NaH,KH ,RbH,CsHthe correct orderof increasingionic character is

Answer»

`LiHltNaHgtCsHgtKHgtRbH`
`LiHltNaHltKHltRbHltCsH`
`RbHgtCsHgtNaHgtKHgtLiH`
`NaHgtCsHgtRbHgtLiHKH`

ANSWER :B


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