In which of the following sets of compounds, hydrogen has same oxidation state?

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CaH2,LiH

LiH,H2O

NaH, HCI

NaH,H2O

answer is A.

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Detailed Solution

In CaH2, LiH and NaH, the oxidation state of H is -1, while in H2O and HCI the oxidation state of H is +1.

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