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Consider LiH, MgH2 and CuH:...

Consider `LiH, MgH_2` and `CuH`:

A

all are ionic hydrides

B

LiH , `MgH_(2)` are ionic whereas CuH is

C

LiH `MgH_(2)` are ionic whereas CuH is metallic

D

LiH is is ionic `MgH_(2)` is covalent and and CuH is metallic

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The correct Answer is:
D
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