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Question

2H2O22H2O+O2 is an example of a disproportionation reaction.


A
True
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B
False
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Solution

The correct option is A True

2H2O22H2O+O2 is an example of a disproportionation reaction.

Disproportionation reactions: “In a disproportionation reaction an element in one oxidation state is simultaneously oxidized and reduced”.

Oxygen experiences a disproportionation reaction in the decomposition of hydrogen peroxide.
2H+12O-12(aq.)Hydrogenperoxide2H+12O-2(l)Water+O02(g)Oxygen

Here

The oxidation state of the oxygen present in peroxide is –1.

The oxidation state of oxygen present in the product is 0.

The oxidation state of oxygen present in H2O. is –2

Thus, the given statement is true.


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