(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

The diagram shows an experimental set up for the laboratory preparation of a pungent smelling gas. The gas is alkaline in nature.

1. Nature the gas collected in the jar.
2. Write the balance equation for the above preparation.
3. How is the gas being collected?
4. Name the drying agent used.
5. How will you find that the jar is full of gas?

What do you observe when Excess ammonia is mixed with chlorine.

What do you observe when Ammonia in excess is mixed with chlorine.

What do you observe when Filter paper dipped in colourless phenolphthalein is introduced into ammonia.

What do you observe when Ammonia is passed over heated lead oxide.

What do you observe when Ammonium solution is added to ferric chloride solution.

What do you observe when Ammonia solution is added drop by drop and then in excess to aqueous copper sulphate solution.

What do you observe when Ammonia comes in contact with the eyes of a person.

Differentiate between:
Action on indicators or dry ammonia gas and aqueous ammonia

Differentiate between:

Aqueous ferrous and ferric sulphate solution

Choose the correct answer from the options given below :

Ammonia is produced when ammonium chloride is heated with

How is ammonia soluble in water?

Write an equation to illustrate the reducing nature of ammonia.

The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer. 

The atomic size:

Of the two gases, ammonia and hydrogen chloride, which is denser? Name the method of collection of this gas.

1. Of the two gases, ammonia and hydrogen chloride, which is more dense? Name the method of collection of this gas.
2. Give one example of a reaction between the above two gases which produce a solid compound.
3. Write the balanced equation for a reaction in which ammonia is oxidized by:
   1. a metal oxide,
   2. a gas which is not oxygen.

Complete and balance the following chemical equation:

C₂H₆ + O₂ →

Identify the anion present in the following compounds.

The solution of Compound L on reacting with freshly prepared ferrous sulphate solution followed by the addition of a few drops of concentrated sulphuric acid to the reactants along the sides of a test tube forms a brown ring at the junction of the two liquids.

Identify the terms for the following:

The experiment which demonstrates high solubility of ammonia gas.