Question

2. Which change in oxidation number indicates

oxidation?
A) -1 to +2
C) -1 to - 2
B) +3 to +2
D) +2 to -3

Answer 1

A)

Step-by-step explanation:

Increasing of oxidation number shows that the process is oxidation(or losing of electrons).

-1 to +2, oxidation number is increased. This is an oxidation process.

-