Question

1. Which of the following metals oxidized by calcium ions?

A- potassium

B- zinc

C- iron

D- lead


2. The first electrochemical cell was invented by _____.

A- Michael Faraday

B- Alessandro Volta

C- James Maxwell

D- Benjamin


3. Why cant a lead storage battery be charged indefinitely?

A- A direct current must pass through the cells

B- The electrodes lose lead sulfate

C- It is difficult to reverse the direction of current flow

D- The electrolyte is too expensive


4. Which electrode (anode or cathode) is designated as positive in an electrolytic cell?

A- anode

B- cathode

C- both

D- neither


5. What is the direction of electron flow in an electrolytic cell?

A- from cathode to anode

B- from anode to cathode

C- in either direction

D- There is no flow


6. What electrolyte can be used to electrolyze water?

A-

Answer 1

1 A

2 B

3 B

4 A

5 B

6 D

7 D

8 B