When SO_2 gas is passed through an acidified solution of K_2 Cr_2 O_7, – InterviewSolution

InterviewSolution

1.	When SO_2 gas is passed through an acidified solution of K_2 Cr_2 O_7, the solution turns ___ in colour.
Answer» the solution BECOMES BLUE the solution becomes colourless `SO_2` is REDUCED green `Cr_2(SO_4)_3` is formed Solution :`K_2Cr_2O_7 + H_2SO_4 + 3SO_2 to K_2SO_4 + Cr_2(SO_4)_3 + H_2O`

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