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Question

In the reaction 2Ag + 2H2SO4Ag2SO4 + 2H2O + SO2 sulphuric acid acts as


A

An oxidizing agent

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B

A reducing agent

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C

A catalyst

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D

An acid as well as an oxidant

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Solution

The correct option is A

An oxidizing agent


The sulphur in H2SO4 gets reduced from a +6 oxidation state to +4 in SO2.
Also, we see that Ag0 becomes Ag+1.

This shows that sulphur has gained electrons and got reduced thereby oxidizing others.
So H2SO4 acts as an oxidizing agent.


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