p-Block elementsHard

Question

Na2S2O3 on treatment with iodine produces :

Options

A.H2S
B.Na2SO2
C.Na2SO3
D.Na2S4O6

Solution

        Na2S2O3 + I2         →         Na2S4O6 + 2NaI
Sodium thiosulphate            Sodium tetrathionate

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