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Write down the anode, cathode, uses and ...

Write down the anode, cathode, uses and reactions of dry cell?

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The most familiar commerical cell are called dry cell. In dry cell, the anode and cathode is
Anode: Zinc (Zn), Cathode : Graphite, Reactions: Anode: `Zn_((s)) rarr Zn_((aq))^(2+) + 2e^(-)`
`ul("Cathode:" 2NH_(4)^(+) (aq) + 2MnO_(2)(s) + 2e^(-) rarr 2MnO (OH) + 2NH_(3))`
Overall: `Zn +2NH_(4)^(+) (aq) 2MnO_(2)(s) rarr Zn^(2+) (aq) + 2MnO(OH) + 2NH_(3)`.
Uses of Dry Cells:
1. These are used in torches.
2. These are used in torches, flashes lights and toys.
3. These are used in calculator and tape recorder and many other devices.

Voltage uses in Dry cell: The voltage of the dry cell is 1.2 to 1.5V
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