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Sodium Thiosulphate

The reaction ...

Question

The reaction of sodium thiosulphate with $I_{2}$ produces:

A

Sodium sulphite

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B

Sodium sulphate

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C

Sodium iodide

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D

Sodium tetrathionate

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Solution

The correct options are
C
Sodium iodide

D
Sodium tetrathionate

$2 N a_{2} S_{2} O_{3} + I_{2} ⟶ N a_{2} S_{4} O_{6} + 2 N a I$

The products are Sodium tetrathionate and sodium iodide.

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Similar questions

Q. The reaction of sodium thiosulphate with

I_{2}

Q. The aqueous solution of an unknown sodium salt gives the following reactions:
(I) It gives white turbidity with dilute

H C l

solution.
(II) It decolourises a solution of iodine in potassium iodide.
(III) It gives a white precipitate with

A g N O_{3}

solution which changes colours and finally becomes black on standing.
The unknown sodium salt is:

Q. In the reaction of sodium thiosulphate with

I_{2}

in aqueous medium the equivalent weight of sodium thiosulphate is equal to:

Q. When sulphur is boiled with

N a_{2} S O_{3}

solution, the compound formed is:

Q. Assertion :The thiosulfate anion reacts stoichiometrically with iodine in aqueous solution, reducing it to iodide as it is oxidized to tetrathionate. Reason: Sodium thiosulphate is used as a titrant in iodometry

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