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How many moles of electrons are needed f...

How many moles of electrons are needed for the reduction of each mole of Cr in the reaction,
`CrO_5+H_2​SO_4 rarr Cr_ 2(SO _4 )_ 3+H_2O+O_2` ​

A

4

B

3

C

5

D

7

Text Solution

Verified by Experts

The correct Answer is:
B
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