JEE Main 2012 Chemistry question
A battery is constructed of Cr and . The unbalanced chemical equation when such a battery discharges is following:
+ Cr + → + +
If one Faraday of electricity is passed through the battery during the charging, the number of moles of removed from the solution is
Answer: (4)
Solution
On charging, both electrode reactions reverse and both consume . Cathode: removes mol per faraday. Anode: $ +
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