ICSE ICSE Class 8 - CISCE Question Bank Solutions

TRUE \ FALSE

Ammonia is a good oxidizing agent.

TRUE \ FALSE

Weak electrolytes dissociate partially in their aqueous or fused state.

TRUE \ FALSE

Electrolytic refining is a method in which a thin coating of a metal is done over another metal.

TRUE \ FALSE

Evaporation of water is a physical change. True or false ?

TRUE \ FALSE

The evolution of a gas during a chemical reaction is shown by an arrow pointing downwards. True or false ?

TRUE \ FALSE

Positively charged electrode is called the anode. True or false ?

TRUE \ FALSE

Temperature at which a liquid starts boiling is known as the boiling point of that liquid. True or false ?

What are chemical reactions?

What are biocatalysts ?

How is precipitate formation in a chemical reaction indicated?

What are homogenous reactions ?

Define electrolysis.

Name three reducing agents ?

Is kerosene an electrolyte or a non-electrolyte ?

What are the characteristics of a chemical reaction ? A chemical reaction is characterised by an irreversible change in which a new substance is formed.

Explain the type of reactions on the basis of the direction of reaction.

Write a short note on the information derived from a balanced chemical equation.

How is a strong electrolyte different from a weak electrolyte?

State the main postulate of the kinetic theory with special reference to Inter-particle space.

State the main postulates of the kinetic theory with special reference to – Inter-particle attraction.