Chemistry-Oxidation Number
NEET Chemistry Oxidation Number MCQ Question
Type: MCQ-fact-Hard-Class 11
In the reaction involving Cr 2 O 7 2– and SO 3 2–, what is the change in oxidation state of chromium?
A
+6 to +3
B
+4 to +6
C
+3 to +6
D
+2 to +4
Correct Answer
Option A
Detailed Explanation
The oxidation state of chromium changes from +6 to +3 during the reaction, indicating a decrease of +3 in oxidation state as noted in the NCERT context.
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