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Chemistry
In dry cell, the reaction which takes place at the graphite anode is
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Q. In dry cell, the reaction which takes place at the graphite anode is
Chhattisgarh PMT
Chhattisgarh PMT 2004
A
$ Zn^{2+}+2e^{-}\rightarrow Zn(s) $
B
$ Zn(s)+2e^{-}\rightarrow Zn(s) $
C
$ Mn^{2+}+2e^{-}\rightarrow Mn(s) $
D
$ Mn(s)\rightarrow Mn^{+}+e^{-} \,1.5\,V $
Solution:
$ Zn(s)\rightarrow Zn^{2+}+2e^{-} $ Because in dry cell at graphite anode ( $ -ve $ electrode) oxidation occurs.