When SO2 is passed through acidified K2Cr2O7 solution :

Engineering

Chemistry

Dichromate and Permanganate Ion Reactions

Question

When SO₂ is passed through acidified K₂Cr₂O₇ solution :

the solution truns blue.

SO₂ is reduced.

green Cr₂(SO₄)₃ is formed.

the solution is decolourised.

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Green Cr₂(SO₄)₃ is formed When SO₂ is bubbled through acidified solution of K₂Cr₂O₇, the orange colour of K₂Cr₂O₇ solution turns to clean green due to formation of chromium sulphate.

Hence option C is correct answer.