Question

The oxidation states exhibited by hydrogen in its various compounds are:

• A. $-1$ only.
• B. Zero only
• C. $+1,-1$ and zero
• D. $+1$ only

Answer 1

Answer: (C)

Oxidation number for hydrogen in hydrogen molecule and hydrogen atom is zero. Oxidation number of hydrogen in all compound containing hydrogen is $+1$ except hydrides.
Oxidation no. of hydrogen in hydrides is$-1$.