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

Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.

Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond 22.2%.

Give reason for the following:
An aqueous solution of chlorine in acidic in nature
Hint : Cl₂ + H₂O ⟶ HCl +HClO

How will the action of dilute hydrochloric acid enable you to distinguish between sodium carbonate and sodium sulphite?

How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?

Give three distinct test [apart from using an indicator] you would carry out with solution of HCl to illustrate the typical properties of an acid.

MnO₂, PbO₂ and red lead react with conc. HCl acid to liberate Cl₂.

What is the common property being shown by these metal oxides?

Convert two soluble metallic nitrates to insoluble metallic chlorides using dil. HCl.

State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.

State which component is the oxidizing agent in aqua regia.

What is passive iron?

Name the products formed when carbon and conc. nitric acid is heated.

Name the products formed when dilute HNO₃ is added to copper.

Ammonia is used in the Ostwald process.

Give the sources of reactants used in this process.

Ammonia is used in the Ostwald process.

Name the catalyst used in the process.

Ammonia is used in the Ostwald process.

Name the oxidising agent used in this process.

Ammonia is used in the Ostwald process.

What is the ratio of ammonia and air taken in this process?

Ammonia is used in the Ostwald process.

Why is quartz used in this process?

Give two chemical equations for the following:

Reactions of nitric acid with non-metals.

Give two chemical equations for the following:

Nitric acid showing as acidic character.