Out of LiH, MgH2 and CuH...

Out of `LiH, MgH_2` and `CuH`

A

All are ionic hydrides

B

LiH, `MgH_2` are ionic and CuH is covalent

C

All are covalent

D

LiH, `MgH_2` are ionic and CuH is intermediate hydride.

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