What is the change in oxidation number of Cr when CrO42- is acidified?
Answer & explanation
Correct answer: option 3
2CrO42- + 2H+ → Cr2O72- + H2O
In CrO42- and Cr2O72- , the oxidation state of Cr is +6.
What is the change in oxidation number of Cr when CrO42- is acidified?
Correct answer: option 3
2CrO42- + 2H+ → Cr2O72- + H2O
In CrO42- and Cr2O72- , the oxidation state of Cr is +6.