Question

The oxidation states shown by hydrogen are.

• A. –1 only
• B. Zero only
• C. +1, –1, 0
• D. +1 only

Answer 1

Answer: (C)

+1, –1, 0

Answer 2

For example $\underset{\mspace{6mu} + \mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu} - \mspace{6mu}\mspace{6mu}\mspace{6mu}\mspace{6mu}(0)}{HF,\mspace{6mu} NaH,\mspace{6mu} H_{2}}$