What is an electrode?

Important Questions on Chemical Effects of Electric Current

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q A

What is an ion?

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q A

Mercury is a liquid that conducts electricity. What constitutes a current through it?

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q A

A metal is released in the electrolysis of a salt. At which electrode will it be deposited?

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q A

Why is an acid or an ionic salt added to water in the electrolysis of water?

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q B

Why are metals good conductors of electricity?

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q B

What are electrolytes? Give examples.

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q B

What happens when a voltage is applied across electrodes placed in an electrolyte?

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 11 - Chemical Effects of Electric Current>Exercises>Q C

Explain electrolysis. What happens in the electrolysis of water?