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Aqueous copper sulphate solution and aqu...

Aqueous copper sulphate solution and aqueous silver nitrate solution are electrolysed by 1 ampere current for 10 minutes in separate electrolytic cells. Will the mass of copper and silver deposited on the cathode be same of different? Explain your answer.

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The mass of copper and silver deposited on the cathode in the two electrolytic cells will not be the same. This is according to second law of Electrolysis. The law states that
When the same quantity of charge is passed through the solutions of different electrolytes connected in series, the mass of the substances deposited at the respective electrodes are directly proportional to their equivalent masses. In the present case.
`("Mass of Cu deposited")/("Mass of Ag deposited")=("Gram equivalent mass of " Cu)/("Grass equivalent mass of " Ag)=(31.75)/(108)`
This means that the masses deposited are different and not same.
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Products of electrolysis depend on the nature of material being electrlysed and the type of electrodes being used. If the electrode is inert (e.g., platinum or gold), it does not participate in the chemical reaction and acts only as source or sink for electrons. On the other hand, if the electrode is reactive, it participates in the electrode reaction. thus, the products of electrolysis may be different for reactive and inert electrodes. Aqueous copper sulphate solution and aqueous silver nitrate solution are electrolysed by 1 ampere current for 10 minutes in separate electrolytic cells. In these question, a statement of assertion followed by a statement of reason. choose the correct answer out of the following choices. Q. Assertion (A): The mass of copper and silver, deposited on the cathode be same. Reason (R): Copper and silver have different equivalent masses.

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