1.

In which of the following hydrides, hydrogen exists in negative oxidation state?A. `HCl`B. `NaH`C. `CaH_(2)`D. `HI`

Answer» Correct Answer - B::C
`NaH` and `CaH_(2)` are ionic hydrides and `Na^(o+)` and `Ca^(2+)` lose electron which is gained by `H` to form `H^(ɵ)` ion.


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