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

Identify the acid in the following case:

The acid which produces sugar charcoal from sugar.

Identify the acid in the following case:

The acid on mixing with lead nitrate solution produces a white precipitate, which is insoluble even on heating.

Give appropriate scientific reasons for The electrical conductivity of acetic acid is less in comparison to the electrical conductivity of dilute sulphuric acid at a given concentration.

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

A basic oxide.

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

An oxide which dissolves in water forming an acid

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

An amphoteric oxide

Identify the anion present in the following compounds:

A salt D on treatment with dilute sulphuric acid produces a gas which turns lime water milky but has no effect on acidified potassium dichromate solution

Identify the anion present in the following compounds:
When barium chloride solution is added to salt solution E a white precipitate insoluble in dilute hydrochloric acid is obtained.

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

Potassium hydrogen carbonate.

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

Sulphur

In the contact process for the manufacture of sulphuric acid give the equations for the conversion of sulphur trioxide to sulphuric acid.

From the list of the following salts choose the salt that most appropriately fits the description is given in the following:

[AgCl, MgCl₂, NaHSO₄, PbCO₃, ZnCO₃, KNO₃, Ca(NO₃)₂]

An insoluble chloride.

Quicklime is not used to dry HCl gas because _____.

Ammonia gas is collected by ______.

Distinguish between the given pair of compounds using the test given within brackets:

Iron (II) sulphate and iron (III) sulphate (using ammonium hydroxide)

Distinguish between the given pair of compounds using the test given within brackets:

Sodium nitrate and sodium sulphite (using dilute sulphuric acid).

Distinguish between the given pairs of compounds using the test given within brackets:

Dilute sulphuric acid and dilute hydrochloric acid (using barium chloride solution)

Write a balanced chemical equation for the following reaction:

Ammonium chloride reacts with calcium hydroxide.

Study the figure given below and answer the questions which follow:

1. Identify the gas Y.
2. What property of gas Y does this experiment demonstrate?
3. Name another gas which has the same property and can be demonstrated through this experiment.

Name the other ion formed when ammonia dissolves in water.