ICSE ICSE Class 6 - CISCE Question Bank Solutions for Chemistry

Name the following:

An inert gas which has a low boiling point and is used for producing very low temperatures

Name the following:

A process which removes carbon dioxide from the air.

Name the following:

The component of air which does not support combustion.

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

The mesosphere in the atmosphere, contains most of the air, fit for respiration

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

The percentage of carbon dioxide in the air is between 0.2 to 0.4%.

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

Carbon dioxide, water vapour and energy in the form of heat are evolved during respiration.

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

Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.

Give word equation for the following conversion:

Nitrogen of the air to nitric oxide

Give word equation for the following conversion:

Nitric oxide to nitrogen dioxide

Give word equation for the following conversion:

Nitrogen dioxide to nitric acid

Give word equation for the following conversion:

Nitric acid to soluble nitrates in the soil

In the chemical word equation – Zinc + Sulphuric acid → Zinc sulphate + Hydrogen

The molecular equation is :

Zn + H₂SO₄ → ZnSO₄ + H₂[g].

State what [g] represents.

Compare respiration and combustion-both involving oxygen of the air.

Define Compounds

Name the elements which form water.
How will you justify that water is a compound? 

State four important characteristics of compounds

Name the elements present in Sugar

Name the elements present in Ammonia

Name the elements present in Marble

Name the elements present in Washing soda