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Chemistry Redox Reaction JEE Main 2024 Single Correct MCQ
Published on: August 13, 2026

Thiosulphate reacts differently with iodine and bromine in the reactions given below:

Which of the following statement justifies the above dual behaviour of thiosulphate?

A
Bromine is a stronger oxidant than iodine
B
Thiosulphate undergoes oxidation by bromine and reduction by iodine in these reaction
C
Bromine is a weaker oxidant than iodine
D
Bromine undergoes oxidation and iodine undergoes reduction in these reactions

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Text Solution

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The correct answer is:
A

In the reaction of with , oxidation state of sulphur changes to +2 to +2.5
In the reaction of with , oxidation state of sulphur changes from +2 to +6 .
Both and are oxidant (oxidising agent) and is stronger oxidant than .

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