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Metal hydrides are ionic, covalent or mo...

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

A

`LiH gt NaH gt CsH gt KH gt RbH`

B

`LiH lt NaH lt KH lt RbH lt CsH`

C

`RbH gt CsH gt NaH gt KH gt LiH`

D

`NaH gt CsH gt RbH gt LiH gt KH`

Text Solution

Verified by Experts

The correct Answer is:
B
Ionic character increases as the size of the atom increases or the electronegativity of the atom decreases, i.e., `LiH lt NaOH lt KH lt RbH lt CsH`.
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