Question

The oxide which cannot act as a reducing agent is

• A. ${NO_2}$
• B. ${SO_2}$
• C. ${CO_2}$
• D. ${ClO_2}$

Answer 1

Answer: (C)

${CO_2}$

Answer 2

The correct answer is Option C) ${CO_2}$

When a substance loses electrons by increasing its oxidation state, it acts as a reducing agent.

In sulphur dioxide, sulphur has a +4 oxidation state. So, it increases its oxidation state to +6, therefore it acts as a reducing agent.

In Nitrogen Dioxide, nitrogen has a +4 oxidation state. So, it increases its oxidation state to +5, therefore it can also act as a reducing agent.

In carbon dioxide, carbon has the maximum oxidation state of + 4, therefore carbon dioxide ${(CO_2)}$ cannot act as a reducing agent.

In ClO2, chlorineis in a +4 oxidation state, it can increase its oxidation state to +7, therefore it can act as a reducing agent.

Therefore, Option C is the correct answer.

Discover More From Chapter:Redox Reactions