ICSE ICSE Class 6 - CISCE Question Bank Solutions for Chemistry

Select homogeneous and heterogeneous mixtures from the following:

The salt solution, petrol, and water, sand, and charcoal, alcohol and water, air dissolved in water, air, seawater, fruit juices, mist, brass.

Define the following:

Pure substance

Define the following:

Impure substance

Define the following:

Alloy

Define the following:

Solution

Define the following:

Heterogeneous mixture

Define the following:

Homogeneous mixture

List four characteristics of a mixture.

Give reason:

Why do sugar and water retain their individual properties in a sugar solution?

Fill the following chart showing twelve solids, twelve liquids, four gases and eight materials.

Give reason:

Why do petrol and water form a heterogeneous mixture?

Give reason:

Why sulphur does dissolve when carbon disulphide is added to a mixture of iron and sulphur but not when it is added to iron sulphide?

To identify materials of common use
Procedure – Just move around in your house – in the drawing room, sitting room, bedroom, kitchen, bathroom etc. Identify the things and All in the blanks in the table given below

Give two examples of the following type of mixture.

solid-solid

Give two examples of the following type of mixture.

solid-liquid

Give two examples of the following type of mixture.

liquid-gas

Give two examples of the following type of mixture.

gas-gas

Name the components present in the following mixture:

Brass

Name the components present in the following mixture:

Duralumin

Name the components present in the following mixture:

Tap water