Home Courses Online Tests Forum

Forum Question BankWhen SO₂ gas is passed into an acidified soluti…

MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic Chemistryp -Block Elements (group 15-18)O and O

When SO₂ gas is passed into an acidified solution of K₂Cr₂O₇, the oxidation state of chromium changes

A.from +12 to +6

B.from +3 to +6

C.from +6 to +3✓ Correct

D.from +6 to +4

Explanation

6 3 2 2 7 2 2 4 2 4 2 4 3 2 K Cr O +3SO +H SO K SO +Cr (SO ) +H O →

Back to Question Bank

Practice More Like This

Take chapter-wise tests, track your progress, and master p -Block Elements (group 15-18).

Start Free Practice →

Sponsored

Master Chemistry for JEE, NEET & IChO

Access 19,000+ solved questions with expert explanations, chapter-wise tests, and full video lectures — all in one platform.

JEE Advanced Chemistry

Explore Courses →Sign In Free