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Electrolytic Refining

In the below ...

Question

In the below electrorefining process, silver nitrate can be used as a solution.

A

True

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B

False

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Solution

The correct option is B
False

Copper gets dissolved as ions need not necessarily gets deposited on the pure copper rod. The copper ions from solution can gain electrons and get deposited. Silver being less reactive gets displaced from solution by copper which defeats the whole point of refining.

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In the electro refining process shown below, silver nitrate can be used as solution.

Q. Which among the following solution can be used as an electrolyte for the electrorefining of copper?

Q. Assertion :Silver nitrate is used as the electrolyte in silver electroplating. Reason: An electrolytic solution is a liquid or gel which contains ions and can be decomposed by electrolysis.

Q. Fill in the blanks with the correct words.
1. Alcohol is a .................... (good/bad) conductor of electricity.
2. Dilute solutions of acids .................... (can/cannot) be used as electrolytes.
3. Positively charged ions are called .................... (anions/cations).
4. Anode mud gets .................... .................... (deposited on/collected below) the anode.
5. The process of .................... (electroplating/electrorefining) can be used to purify metals.

Q. State whether the following statements are True or False :
Ethyne and its derivatives will give white precipitate with ammoniacal silver nitrate solution.

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