Question

6. What electrolyte can be used to electrolyze water?

A) Hydrochloric acid only
B) Sodium chloride only
C) Sodium hydroxide only
D) Any electrolyte that is not easily reduced or oxidized
7. The gas produced at the cathode in the electrolysis of brine is ___
A) Hydroxide
B) Chlorines
C) Oxygen
D) Hydrogen
8. In electroplating, the object to be electroplated is placed ____
A) At the anode
B) At the cathode
C) At either the anode or the cathode
D) In between the anode and the cathode

Answer 1

1. D
2. D
3. B
Just took the quiz and and I got these answers right.

Answer 2

6. A

7. B

8. B

Step-by-step explanation:

In the electrolysis of water, a small amount of an electrolyte is added, usually an acid solution. This assists the dissociation of water into ions during the electrolysis. Hydrogen and oxygen are obtained as products of the electrolysis.

In the electrolysis of brine, chlorine is preferentially discharged compared to the hydroxide ion due to position in the electrochemical series.

During electroplating, the metal to be plated acts as the cathode while the plating metal acts as the anode.