EASY
8th CBSE
IMPORTANT
Earn 100

Match the column 1 with column 2

Column 1 Column 2
(a) Insulator (i) Electric circuit 
(b) conductor (ii) Conduct current
(c) closed path (iii) Prevents rusting

(d) Solution of distilled water and salt

(iv) Rubber
(e) Electroplating (v) Copper

 

Important Questions on Chemical Effects of Electric Current

EASY
8th CBSE
IMPORTANT

Match the column 1 with column 2

Column 1 Column 2
(a) Copper And Aluminium  (i) Electrodes
(b) A tester  (ii) Good Conductor
(c) Carbon Rod (iii) Detect the current
(d) LED  (iv) Added to water to increase conductivity
(e) Lemon Juice (v) Light Emitting diodes
EASY
8th CBSE
IMPORTANT

Acidified water is electrolyzed by using carbon electrodes. What is produced at cathode and at anode?

EASY
8th CBSE
IMPORTANT

Vinegar is a sour liquid. State whether vinegar conducts electricity or not.


EASY
8th CBSE
IMPORTANT

Name two industrial compounds or elements which are obtained by electrolytic method.

EASY
8th CBSE
IMPORTANT

Name the metal which is usually electroplated on car parts such as bumpers and bicycle handlebars made of steel.


EASY
8th CBSE
IMPORTANT

Fine machine parts can be repaired by which process?


EASY
8th CBSE
IMPORTANT

Is sugar an electrolyte or non-electrolyte?