1.

In the dry cell (a) Which substance acts as anode and which as cathode ? (b) Which electrolyte is used in the cell ? (c ) What is the cell potential of the cell ? (d) Why does the cell voltage not change during operation ?

Answer»

Solution :(a) Zinc container acts as anode while carbon rod behaves as cathode.
(b) A paste of HgO and KOH acts as the electrolyte.
(C ) The cell POTENTIAL is 1.35 V.
(d) The cell VOLTAGE does not change because the OVERALL redox reaction taking place in the cell does
not involve any ions and there is no change in concentration.
`Zn(s)+HgO(s) to ZNO(s)+Hg(l)`


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