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

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

of the two gases ammonia and hydrogen chloride, which is more dense. Name the method of collection of this gas.

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 nitrates of :
1. Calcium
2. Zinc
3. Lead
4. Copper are strongly heat

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.

Explain why carbon tetrachloride does not dissolve in water.

Elements Q and S react together to form an ionic compound. Under normal conditions, which physical state will the compound QS exist in?

What are the term defined below?

A bond formed by share pair of electrons, each bonding atom contributing one electron to the pair.

Draw the electron dot diagram and structure of nitrogen molecule.

Draw the electron dot diagram and structure of magnesium chloride.