question_answer

Assertion: Caro's acid has S atom in +6 oxidation state.

Reason: Caro's acid contains one peroxo \[O_{2}^{2-}\] group.

A) Assertion and reason both are correct statements and reason is correct explanation for assertion.

B) Assertion and reason both are correct statements but reason is not correct explanation for assertion.

C) Assertion is correct statement but reason is wrong statement.

D) Assertion is wrong statement but reason is correct statement.

Correct Answer: A

Solution :

This can be explained through structure of caro's acid (peroxomonosulphuric acid).

Oxidation no. of S = x, oxidation no. of H = +1,

Oxidation no. of O in peroxo linkage = - 1 (each),

Oxidation no. of other oxygen atoms = - 2 (each).

2 + x - 6 - 2 = 0 or x =+6.