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

Write balanced equation for potassium hydrogen carbonate and dilute sulphuric acid.

A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (ii).
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent

(i) Preparation of hydrogen chloride.
(ii) Preparation of ethane from ethanol
(iii) Preparation of copper sulphate from copper oxide.

Name the gas evolved in following case: 
The gas produced by the action of concentrated sulphuric acid on sodium chloride.

Write the equation of the following reaction:

Sulphur is heated with concentrated sulphuric acid.

Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar

State your observation for the following case :
Moist blue litmus is introduced into a gas jar of sulphur dioxide.

State your observation for the following case :
Dry red rose petals are placed in the jar of sulphur dioxide.

State your observation for the following case:

Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur dioxide.

What would you observe in the following case:

Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.

What property of sulphuric acid is shown by the reaction of concentrated sulphuric acid when heated with potassium nitrate?

In the given equation identify the role played by concentrated sulphuric acid S + 2H₂SO₄→ 3SO₂ + 2H₂O

State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.

State one appropriate observation of the following:

Dehydration of concentrated sulphuric acid with sugar crystals.

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

Dehydrating property

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

Acidic nature

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

As a non-volatile acid

Give a balanced chemical equation for the action of sulphuric acid on the following:

Potassium hydrogen carbonate

Give a balanced chemical equation for the action of sulphuric acid on the following:

Sulphur

Write balanced chemical equation to show :
The oxidizing action of conc.sulphuric acid on carbon

Write balanced chemical equation to show :
The behavior of H₂SO₄ as an acid when it reacts with magnesium.