Chemical Effects of Electric Current

Chemical effects of electric current Worksheet-1

1. Most liquids that conduct electricity are solutions of ____, ____, and _____.

2. The passage of an electric current through a solution causes ______ effect.

3. If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ______ terminal of the battery.

4. The process of depositing a layer of any desired metal on another metallic object, by means of electricity, is called ______.

5. The closed path through which the current flows is called ______.

Chemical effects of electric current Worksheet-2

1. Math the following:

Multiple choice questions:

2. Plastic wire is

A. an insulator                              B. a conductor

C. both of these                             D. none of these

Chemical effects of electric current Worksheet-3

1. When the free ends of a tester are dipped into a solution the magnetic needle shows deflection. Can you explain the reason?

2. The bulb does not glow in the set up shown in Figure. List the possible reasons. Explain your answer.

3. Does pure water conduct electricity? If not what can we do to make it conducting?

4. In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. Explain why they do this.