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Class 8 Chemical Effects of Electric Current

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

The movement of (a)   constitutes an electric current

2.

Driving force also called (a)   force is used to push the electrons that carry the charge around the circuit

3.

Conventional current

a)

Positive  Negative Positive\ \rightarrow\ Negative\  

b)

Negative  Positive Negative\ \rightarrow\ Positive\  

4.

Electric Current

a)

Negative  Positive Negative\ \rightarrow\ Positive\  

b)

Positive  NegativePositive\ \rightarrow\ Negative  

5.

Most liquids that conduct electricity are solution of acids, bases and distilled water

a)

True

b)

False

6.

An electric current can bring about a (a)   change

7.

The process of breaking up of an electrolyte chemically on passing an electric current through it is called (a)  

8.

Positively charged particles are called (a)  

9.

copper get transferred from the ______ to the ______

a)

anode , cathode

b)

cathode , anode

10.

An arrangement of an electrolyte, two electrodes and a source of current is called and (a)   cell

11.

Insoluble impurities settle down below the anode as _____ ___

(a)  

12.

True/False

Oxygen is released at the side of cathode

a)

True

b)

False

13.

what allows electricity to flow through water?

(a)