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Redox Reactions question

2024 · 8 Apr · Shift 1 · Q2

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JEE Main
Chemistry
Redox Reactions
2024 · 8 Apr · Shift 1 · Q2

Redox Reactions question

2024 · 8 Apr · Shift 1 · Q2

JEE MainChemistryRedox ReactionsMCQ+4 / −1

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

\begin{aligned} & 2 \mathrm{~S}_2 \mathrm{O}_3^{2-}+\mathrm{I}_2 \rightarrow \mathrm{S}_4 \mathrm{O}_6^{2-}+2 \mathrm{I}^{-} \\ & \mathrm{S}_2 \mathrm{O}_3^{2-}+5 \mathrm{Br}_2+5 \mathrm{H}_2 \mathrm{O} \rightarrow 2 \mathrm{SO}_4^{2-}+4 \mathrm{Br}^{-}+10 \mathrm{H}^{+} \end{aligned}

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

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

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