Assertion (A): The decomposition of hydrogen

Question:

Assertion (A): The decomposition of hydrogen peroxide to form water and

oxygen is an example of a disproportionation reaction.

Reason (R): The oxygen of peroxide is in –1 oxidation state and it is converted to zero oxidation state in O2 and –2 oxidation state in H2O.

(i) Both A and R are true and R is the correct explanation of A.

(ii) Both A and R are true but R is not the correct explanation of A.

(iii) A is true but R is false.

(iv) Both A and R are false.

Solution:

Option (i) Both A and R are true and R is the correct explanation of A is correct.

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