Question

hydrogen cannot show an oxidation number of
(a) -2
(b) +1
(c) 0
(d) -1

Answer 1

Answer:

Explanation:

-2 is the correct answer

oxidation no of hydrogen ( 1,0,-1)

hydrogen being a monoatomic gas can only have oxidation no.1  or -1 but not -2

Answer 2

Answer:

(a)

Explanation:

hydrogen oxidation number is -1,0,1