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 covalent

C

`LiH, MgH_2` are ionic, whereas `CuH `is metallic

D

`LiH` is ionic, `MgH_2` is covalent and `CuH` is metallic

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The correct Answer is:

D

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