MEDIUMMCQ SINGLENEET 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 →
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