Colour of I 2 solution is discharged, when solution of 'X' is added. 'X' is

Question

Colour of I 2 solution is discharged, when solution of 'X' is added. 'X' is, H 2 S O 4, N a 2 S O 4, N a 2 S 2 O 3, S 8

MARKS App · Accepted Answer

I 2 combines with N a 2 S 2 O 3 solution to form sodium tetrathionate and colour of I 2 is discharged. 2 N a 2 S 2 O 3 + I 2 → 2 N a I + N a 2 S 4 O 6

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