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

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.

Write balanced chemical equation to show :
The dehydrating property of conc. sulphuric acid

Which property of sulphuric acid accounts for its use as a dehydrating agent ?

Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write one equation each to illustrate the properties of sulphuric acid mentioned above.

Write the balanced chemical equation for the following conversion:
Lead sulphate from lead nitrate solution and dilute sulphuric acid.

Write the balanced chemical equation for the following conversion:
Copper sulphate from copper and concentrated sulphuric acid.

Write the balanced chemical equation for the following conversion:
Ammonium sulphate from ammonia and dilute sulphuric acid.

Dilute hydrochloric acid and dilute sulphuric acid are both colourless solutions. How will the addition of barium chloride solution to each help to distinguish between the two?

Dilute sulphuric acid will produce a white precipitate when added to a solution of ______.

One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Calcium nitrate solution and zinc nitrate solution.

Write the observation for the following:

Decomposition of bicarbonates by dil. H₂SO₄.

\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]

Choose the correct answer:
The salt which in solution gives a pale precipitate with sodium hydroxide solution and a white precipitate with barium chloride solution is: