EASY
8th CBSE
IMPORTANT
Earn 100

Why does the blue colour of copper chloride fade away gradually during electrolysis?

Important Questions on Chemical Effects of Electric Current

MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 1
The nucleus of an atom is surrounded by negatively charged particles called _____.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 1
 _____ (Mineral oil /Electrolyte) is a liquid which can conduct electricity.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 1
Water in its pure form is a _____ conductor of electricity. (bad/good)
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 1
A _____ contains positively and negatively charged ions (liquid/cathode/ anode).
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 1
Dry wood is a/an _____ . (conductor / insulator)
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 2
The electrolyte undergoes _____ (chemical/magnetic) changes due to the passage of electric current through it.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 2
The material to be coated with a layer is used as _____.
(Choose from cathode / anode.)
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 14 - Chemical Effects of Electric Current>TRACK YOUR PROGRESS>Q 2
_____(Electroplating/Electromagnetic induction) can protect various materials against corrosion.