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A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated.

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A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?

(a) S

(b) H

(c) Cl

(d) C

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1 Answer

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Best answer

The correct option is : (c) Cl

Explanation:

Maximum change in oxidation number of chlorine, i.e., from +5 to -1.

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