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Question

Which one of the following reactions is not an example of redox reaction

A
Cl2+2H2O+SO24H++SO24+2Cl
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B
Cu+++ZnZn+++Cu
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C
2H2+O22H2O
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D
HCl+H2OH3O++Cl
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Solution

The correct option is D HCl+H2OH3O++Cl
In reaction HCl+H2OH3O++Cl, there is no reduction or oxidation happening! Just ionisation, look at this carefully.

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