ICSE ICSE Class 8 - CISCE Question Bank Solutions for Chemistry

Explain the meaning of the term ‘matter’.

Explain the meaning of the term ‘matter’.

Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.

Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.

Complete the statement given below by filling in the blank with the correct word.

The basic unit of an element is a/an ________.

Complete the statement given below by filling in the blank with the correct word.

Element _______ has the symbol derived from its Latin name ‘plumbum’.

Select the correct answer from A, B, C, D & E for the statement given below:

An atom or group of atoms _________ having a resultant charge.

Select the correct answer from A, B, C, D & E for the statement given below:

An atom or group of atoms _________ having a resultant charge.

What is a chemical reaction?

A chemical reaction is often accompanied by external indications or characteristics which include – 

1. Colour change
2. Effervescence or gas evolved
3. Evolution or absorption of heat
4. Formation of a precipitate.

With reference to each of the above indications, state the external indication seen during – Addition of dilute acid to an active metal.

A chemical reaction is often accompanied by external indications or characteristics which include – 

1. Colour change
2. Effervescence or gas evolved
3. Evolution or absorption of heat
4. Formation of a precipitate.

With reference to each of the above indications, state the external indication seen during – Addition of dilute hydrochloric acid to silver nitrate.

A chemical reaction is often accompanied by external indications or characteristics which include – 

1. Colour change
2. Effervescence or gas evolved
3. Evolution or absorption of heat
4. Formation of a precipitate.

With reference to each of the above indications, state the external indication seen during – Addition of water to quicklime.

A chemical reaction is often accompanied by external indications or characteristics which include – 

1. Colour change
2. Effervescence or gas evolved
3. Evolution or absorption of heat
4. Formation of a precipitate.

With reference to each of the above indications, state the external indication seen during – Thermal decomposition of mercury [II] oxide.

Match the chemical reactions in List I with the appropriate answer in List II.

What are the uses of coal?

Define interconversion of states of matter. What are the two factors responsible for the change of states of matter?

What happens to water if it is heated and Explain the phenomenon of change of state of water.

 State the law of conversation of mass.

What do you observe when, barium chloride solution is mixed with sodium sulphate solution ?

Give reasons:

A gas can fill the whole vessel in which it is enclosed.