NEET Chemistry Oxidation Number MCQ Question
Consider a diagram showing the reaction between potassium dichromate (K2Cr2O7) and sodium sulphite (Na2SO3) in an acid solution. Which of the following correctly represents the change in oxidation number for chromium during this reaction?
From +6 to +3
From +3 to +6
From +2 to +6
From +4 to +2
Correct Answer
Detailed Explanation
In the reaction involving K2Cr2O7 and Na2SO3, the oxidation number of chromium decreases from +6 to +3, indicating a reduction process as per the NCERT context.
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