Assertion :The reaction MnO−4→Mn2+ involves oxidation. Reason: The process of increase of oxidation number or removal of electron(s) is called oxidation.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect but Reason is correct
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Solution
The correct option is D Assertion is incorrect but Reason is correct In this reaction, the oxidation number of Mn decreases from +7 to +2. Hence, it is reduced. During oxidation, the oxidation number increases due to loss of electrons. Reverse is true for reduction.