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

Explain the following:

Dry N₂ and H₂ must be used in the Haber's process.

Explain the following:

 A promoter is added along with the catalyst in the Haber's process.

The questions below are related to the manufacture of ammonia.

1. Name the process.
2. In what ratio must the reactants be taken?
3. Name the catalyst used.
4. Give the equation for the manufacture of ammonia.
5. Ammonia can act as a reducing agent; write a relevant equation for such a reaction.

What will you observe, when hydrogen chlorides mixed with ammonia?

1. Of the two gases, ammonia and hydrogen chloride, which is more denser? Name the method of collection of this gas.
2. Give one example of a reaction between the above two gases which produces a solid compound.

Give one example of a reaction between the ammonia and hydrogen chloride gases which produces a solid
compound.

Choose the correct answer from the options given below :

 Ammonia is commercially prepared by

Choose the correct answer from the options given below :

 In the Haber's process for the manufacture of NH₃, iron is used as catalyst and molybedenum as promoter. The function of promoter is

Copy and complete the following table :

Copy and complete the following table relating to important industrial process:

Write the observation for the following:
A paper dipped in potassium permanganate solution is put on the mouth of a test tube containing sulphur dioxide gas.

State the colour of the residue formed when nitrate of calcium is strongly heated.

State your observation of the following case:

When calcium hydroxide is heated with ammonium chloride crystals.

Compound X consists of molecules.

Choose the letter corresponding to the correct answer from the options A, B, C and D given below: 

The type of bonding in X will be ______.

Compound X consists of molecules.

Choose the letter corresponding to the correct answer from the options A, B, C and D given below:

X is likely to have a ______.

Electrons are getting added to an element Y: 

Is Y getting oxidised or reduced?

Electrons are getting added to an element Y: 

which electrode will Y migrate to during the process of electrolysis?

Acids dissolve in water and produce positively charged ions. Draw the structure of these positive ions.