Factors Affecting Electrolysis

Q. The layer of ________ is formed at anode during the anodizing process.

1. aluminium metal
2. aluminium oxide
3. hydrogen gas
4. iron oxide

Q. Give reasons why alkali metals are kept in an inert solvent.

Q.

The electrochemical equivalent of a material in an electrolyte depends on.

1. the nature of material

2. the current through the electrolyte

3. the amount of charge passed through electrolyte

4. the amount of material present in electrolyte.

Q. How is magnesium chloride formed by the transfer of electrons? Why does the solution of Magnesium chloride conduct electricity?

Q. Humphrey Davy wanted to test out his electrolysis experiment of Sodium. He made 3 particular changes to his experiment.
A. He increased current
B. He increased voltage
C. He increased the area of the electrode
What would be his observations? Type the appropriate number from the following options here. ___

1. Increased rate of production of sodium in all cases.
2. Increased production of sodium in all cases.
3. No difference in production of sodium in all cases as compared to before changing.
4. Increased rate of production in case A and decreased rate of production in case B and no change in case C.
5. Increased rate of production in first 2 cases and decrease in 3rd case.

Q. Which of the following factors don't affect the process of electrolysis?
Type in the appropriate number here. ___

1. Concentration of the electrolyte
2. Galvanometer
3. Size of the electrode
4. Nature of the metal used
5. Current
6. Voltage

Q. Now Rancho got more curious and he wanted to check other batteries as well. So he tried his motorcycle battery this time. Again he made some observations. Which of the following are TRUE?

1. It consists of a lead anode
2. A grid of lead packed with lead dioxide $\left(Pb{O}_2\right)$ acts as cathode
3. It is non-rechargeable
4. A $38\%$ solution of sulphuric acid is used as an electrolyte

Q. In Samwell's classes, the Maesters made the following statements. He had to figure out how many were right. Can you help him?

Maester 1 said: Rate constant is characteristic of a reaction
Maester 2 said: Rate constant is dependent on temperature
Maester 3 said: Rate constant is not dependent on the catalyst

1. One was right
2. Two were right
3. Three were right
4. None were right

Q. Humphrey Davy wanted to test out his electrolysis experiment of Sodium. He made 3 particular changes to his experiment.
A. He increased current
B. He increased voltage
C. He increased the area of the electrode
What would be his observations? Type the appropriate number from the following options here. ___

1. Increased rate of production of sodium in all cases.
2. Increased production of sodium in all cases.
3. No difference in production of sodium in all cases as compared to before changing.
4. Increased rate of production in case A and decreased rate of production in case B and no change in case C.
5. Increased rate of production in first 2 cases and decrease in 3rd case.

Q. Cork stopper are used as _____ in the chemistry laboratory.

1. plug
2. outlets
3. inlets
4. none of them