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

State the conditions required for the given reaction to take place:

Any two conditions for the conversion of sulphur dioxide to sulphur trioxide.

Draw the structure of the stable positive ion formed when an acid dissolves in water.

State the inference drawn from the following observations:

Salt S is prepared by reacting dilute sulphuric acid with copper oxide. Identify S.

Give one equation to show the following properties of sulphuric acid:

Dehydrating property

Give one equation to show the following properties of sulphuric acid:

Acidic nature

Give one equation to show the following properties of sulphuric acid:

As a non-volatile acid

Name the kind of particles present in carbonic acid.

State one relevant observation for the following.

Lead nitrate solution is treated with sodium hydroxide solution drop wise till it is in excess.

A compound X (having vinegar like smell) when treated with ethanol in the presence of the acid Z, gives a compound Y which has a fruity smell.

The reaction is: \[\ce{C2H5OH + X ->[Z] Y + H2O}\]

1. Identify Y and Z.
2. Write the structural formula of X.
3. Name the above reaction.

Give a chemical test to distinguish between the given pair of chemicals:

Lead nitrate solution and zinc nitrate solution.

Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with ethanol?

Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with carbon?

Define catenation.

Explain the formation of hydronium ion.

Name the ion that turns blue litmus red.

Name the ion that turns red litmus blue.

How is an acid prepared from a non-metal? Give an equation for it.

How is an acid prepared from a salt? Give an equation for it.

Define in term of ionization an acid.

Define in term of ionization an alkali?