ICSE ICSE Class 7 - CISCE Question Bank Solutions for Chemistry

Select the correct answer to the statement given below:

The basic unit of matter is not capable of independent existence.

Select the correct answer to the statement given below:

The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.

Select the correct answer to the statement given below:

Imaginary path around the nucleus of an atom in which electrons revolve.

State the correct formula of the following from the option given:

Calcium hydroxide

State the correct formula of the following from the option given:

Sodium bisulphite

State the correct formula of the following from the option given:

Ammonium sulphate

State the correct formula of the following from the option given:

Aluminium phosphate

State the correct formula of the following from the option given:

Copper [II] nitrate

Name the following:

A molecule of a compound containing two oxygen atoms and one nitrogen atom.

Name the following:

The compound formed when iron [Fe²⁺] combines with oxygen [O²⁻].

Name the following:

A non-metal which forms a polyatomic molecule with more than three atoms.

What does 2C0₂ represent ?

What does 2H₂S  represent ?

What does 5H₂S0₄ represent ?

What does 6NaNO₃ represent ?

Write the molecular formulae of Sodiun sulphide: 

Write the molecular formulae of Magenesium oxide :

Write the molecular formulae of Calcium hydroxide :

Write the molecular formulae of Hydrogen chloride :

Write the molecular formula of sulphuric acid.