ICSE ICSE Class 6 - CISCE Question Bank Solutions for Chemistry

State whether the following statement is true or false. If false write – the correct statement.

Components in a mixture are present in a definite proportion.

State whether the following statement is true or false. If false write – the correct statement.

Components in a mixture can be separated by physical and chemical methods.

State whether the following statement is true or false. If false write – the correct statement.

Sodium chloride and water is an example of a mixture of elements and compounds.

State whether the following statement is true or false. If false write – the correct statement.

Mixture has no definite set of properties.

State whether the following statement is true or false. If false write – the correct statement.

Heterogeneous mixtures have different composition and properties throughout the mixture.

Name the following

A black non-metallic component of the mixture gunpowder.

Name the following:

A physical method of separating iron from an iron-sulfur mixture.

Name the following:

The component of the soluble solid-liquid mixture, which is lost to the atmosphere on heating.

Name the following:

A mixture of two immiscible liquids

Name the following:

The component of a naphthalene-sodium chloride mixture, which remains in the evaporating dish when heated together, covered with a funnel.

Give reasons for the following:

Naphthalene and camphor cannot be separated by sublimation.

Define the following:

Photosynthesis

Why is nitrogen important to all living beings?

What is nitrogen fixation?

Give word equation for the following conversion:

Carbon dioxide in the air to carbohydrates in plants.

Define Filtration

An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.

Hydrogen by ‘H’

An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.

Helium by ‘He’

An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.

Copper by ‘Cu’

Match the metallic elements – with their correct symbols Metallic elements