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

Select an oxide which dissolves in water forming an acid.

Draw the structure of Hydronium ion.

Name the acid present in grapes.

Name the acid present in lemon.

Name the metal hydroxides which are insoluble in caustic soda solution.

Write the word equation when ammonium salt is heated with caustic soda solution.

112 cm³ of H₂S(g) is mixed with 120 cm³ of Cl₂(g) at STP to produce HCl(g) and sulphur(s). Calculate the volume of gaseous product formed.

112 cm³ of H₂S(g) is mixed with 120 cm³ of Cl₂(g) at STP to produce HCl(g) and sulphur(s). Calculate composition of the resulting mixture.

1250 cc of oxygen was burnt with 300cc of ethane [C₂H₆]. Calculate the volume of unused oxygen formed:

\[\ce{2C2H6 + 7O2 -> 4CO2 + 6H2O}\]

A compound has the following percentage composition by mass: carbon 14.4%, hydrogen 1.2% and chlorine 84.5%. By what type of reaction could this compound be obtained from ethylene?

Choose the correct answer from the options given below:

A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is:

1) Calcium chloride

2) Ferrous chloride

3) Ferric chloride

4) Copper chloride

Write a balanced chemical equation for the following:

Preparation of methane from iodomethane.

How will you distinguish between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?

Write a balanced chemical equation for the preparation of the following salts

Copper carbonate 

Give a balanced chemical equation for Action of conc. Nitric acid on Sulphur

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 ___________.

Fill in the blanks using the appropriate words given below :

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

Hot, concentrated nitric acid reacts with sulphur to form ______________.

State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions :
1) Copper sulphate solution

2) Zinc sulfate solution.

State one relevant observation for the following:

When crystals of copper nitrate are heated in a test tube.

Write a balanced equation for the action of warm water on magnesium nitride.