Chemistry-Oxidation Number

NEET Chemistry Oxidation Number MCQ Question

Type: MCQ-diagram based-Easy-Class 11

In the diagram shown above, which element has an oxidation number change from +6 to +3?

Question diagram
A

Chromium

B

Sodium

C

Sulphur

D

Lead

Correct Answer

Option A

Detailed Explanation

According to the NCERT context, when potassium dichromate(VI) reacts with sodium sulphite in an acidic solution, chromium undergoes a reduction in oxidation number from +6 to +3.

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