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Arrhenius Acid

The strength ...

Question

The strength of an aqueous solution of $I_{2}$ can be determined by titrating the solution with standard solution of :

A

Oxalic acid

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B

Sodium thiosulphate

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C

Sodium hydroxide

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D

Mohr's salt

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Solution

The correct option is B Sodium thiosulphate
$I_{2} + 2 N a_{2} S_{2} O_{3} \to N a_{2} S_{4} O_{6} + 2 N a I$

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