Chemistry-Oxidation Number
NEET Chemistry Oxidation Number MCQ Question
Type: MCQ-diagram based-Easy-Class 11
A diagram shows the reaction where iodide ions (I–) are converted to iodine (I2) and permanganate ions (MnO4–) are reduced to manganese dioxide (MnO2). Which of the following statements correctly describes the oxidation number change in this reaction?
A
Iodine undergoes an increase in oxidation number from -1 to 0.
B
Manganese undergoes a decrease in oxidation number from +7 to +2.
C
Oxygen's oxidation number remains constant throughout the reaction.
D
The overall charge of the reaction mixture increases.
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, iodide ions (I–) are oxidized to iodine (I2), indicating an increase in oxidation number from -1 to 0.
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