In which of the compounds does hydrogen have an oxidation state of -1

1.	In which of the compounds does hydrogen have an oxidation state of -1
A.	\[C{{H}_{4}}\]
B.	\[N{{H}_{3}}\]
C.	HCl
D.	\[Ca{{H}_{2}}\]
Answer» E.

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In which of the compounds does hydrogen have an oxidation state of -1

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