Reaction that takes place at graphite anode in dry cell is:
A
Zn2++2e−→Zn(s)
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B
Zn(s)→Zn2++2e−
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C
Mn2++2e−→Mn(s)
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D
Mn(s)→Mn++e−+1.5V
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Solution
The correct option is BZn(s)→Zn2++2e− In the dry cell, the oxidation of zinc occurs at graphite anode. Zinc loses two electrons to form Zn2+ ion. The electrode reaction is Zn→Zn2++2e−