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Question

Chemistry Question on Group 16 Elements

The colour of the iodine solution is discharged by shaking with

A

sodium sulphate

B

sodium sulphide

C

aqueous sulphur dioxide

D

sodium bromide

Answer

aqueous sulphur dioxide

Explanation

Solution

SO2+I2+2H2O>H2SO4+2HI {SO_2 + I_2 + 2H_2O -> H_2SO_4 + 2HI}