Electrolytic Refining

Q.

During electrolytic refining of copper, which of the following is used as an electrolyte?

1. Copper sulphate solution

2. Copper hydroxide

3. Silver nitrate solution

4. Zinc sulphate solution

Q.

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

1. True

2. False

Q. $B_{4}C$ (boron carbide) is used except:

1. To extract boron
2. As an abrasive for polishing
3. For making diborane
4. For making bullet-proof clothing

Q.

Electrolytic refining always involves low temperatures and aqueous solutions – True or False?

1. False

2. True

Q. Which of the following electrolysis process is used for purification of pb?

1. Hall process
2. Betts electrolysis process
3. None of these
4. Parke's process