MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic Chemistryd and f Block elementsPotassium Dichromate
reacts with OH– as CrO 2CrO 2H Cr O H O -> Cr O The change in oxidation number of Cr is
A.+6 (b) +3
C.zero✓ Correct
D.+4
Explanation
2 2 2 7 4 2 6 6 Na Cr O + 2OH 2CrO + H O ->
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