In certain reaction, Br^- ions are converted to Br\_2. What... | Chemistry - Oxidation-Reduction and Oxidation States | SolveeIt | Solveeit

Today, August 19

Question

In certain reaction, Br $^-$ ions are converted to Br $_2$ . What is the change in oxidation number of bromine?

Visual representation for Chemistry

A

-2 to 0

B

-1 to +2

C

-1 to 0

D

-1 to +1

Answer

Option (C) -1 to 0

Explanation

Solution

For $\text{Br}^-$ , the oxidation number is $-1$ . In $\text{Br}_2$ (elemental bromine), the oxidation number is $0$ . Therefore, the oxidation number changes from $-1$ to $0$ .