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The correct order of stability of hydrid...

The correct order of stability of hydrides of alkali metals is

A

`NaHgtLiHgtKHgtRbHgtCsH`

B

`LiHgtNaHgtKHgtRbHgtCsH`

C

`CsHgtRbHgtKHgtNaHgtLiH`

D

`KHgtNaHgtLiHgtcsHgtRbH`

Text Solution

Verified by Experts

The correct Answer is:
B
As the size of alkali metal ion increases, lattice enthlpy decreases and hence the stability of the corresponding metal hydride decreses.
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