(English Medium) ICSE Class 10 - CISCE Important Questions for Chemistry

Give a balanced chemical equation for Laboratory preparation of Nitric acid.

Write balanced chemical equations to show : The oxidizing action of conc. Sulphuric acid on carbon

Give one word or phrase for the following:

The amount of energy released when an atom in the gaseous state accepts an electron to form an anion.

 The tendency of an atom to attract electrons itself when combined in a covalent compound. 

Give a reason for Inert gases do not form ions.

The covalent bond in which the electrons are shared equally between the combining atoms. 

Higher the pH value of a solution, the more ______ it is.

The salt prepared by the method of direct combination is _______.

State your observations when Barium chloride solution is mixed with Sodium Sulphate Solution.

Give one word or phrase for the following:

The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.

Name the following:

An ore of zinc containing its sulphide.

State the main components of the following alloys:

Brass

State the main components of the following alloys:

Duralumin

Write a balanced chemical equation for the action of heat on aluminium hydroxide.

Name the alloys for the given composition:

Magnesium + Manganese + Aluminium + Copper

State your observation when dilute hydrochloric acid is added to a lead nitrate solution and the mixture is heated.

Write balanced chemical equations for Action of warm water on AIN.

Fill in the blanks using the appropriate words given below :

(Sulphur dioxide, nitrogen dioxide, Nitric oxide, Sulphuric acid)

Cold, dilute nitric acid reacts with copper to give ___________.

Complete the following equations : 
  S + conc.HNO₃ → 

Give a balanced chemical equation for Preparation of ethane from Sodium propionate