EASY
8th CBSE
IMPORTANT
Earn 100

Give reasons for the following.
Pure water is a poor conductor of electricity.

Important Questions on Chemical Effects of Current

MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>Exercises>Q D
Describe the two uses of electrolysis.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>Exercises>Q D
Describe electroplating with examples.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>Exercises>Q D
In electro refining of copper, which object is used as the anode?
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>Exercises>Q D
In electro refining of copper, name the electrolyte used.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>Exercises>Q D
In electrorefining of copper, what is used as cathode?
HARD
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>LET'S RECALL

Recall and complete the concept map given below.

Question Image

MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>LET'S APPLY

Carbon electrodes are commonly used in electrolytic cells. Can you explain why?

MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 13 - Chemical Effects of Current>LET'S APPLY
Electroplating is hazardous to the environment. Give reasons.