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प्रश्न
Copy and complete the following table.
Column 3 has the names of gases to be prepared using the substance you enter in column 1, along with dilute or concentrated sulphuric acid, as indicated in column 2.
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated sulphuric acid | Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
Write the equation for the laboratory preparation of :
(i) Sodium sulphate using dilute sulphuric acid.
(ii) Lead sulphate using dilute sulphuric acid.
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उत्तर
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated sulphuric acid | Gas |
| Metal | Dilute sulphuric acid | Hydrogen |
| Carbonate | Dilute sulphuric acid | Carbon dioxide |
| Metal chlorides | Conc. sulphuric acid | Only chlorine |
Equation are :
(i) \[\ce{2NaOH + H2SO4 -> Na2SO4 + 2H2O}\]
(ii) \[\ce{Pb(NO3)2 + H2SO4 -> PbSO4 v + 2HNO3}\]
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संबंधित प्रश्न
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.
Give one equation to show the following properties of sulphuric acid:
As a non-volatile acid
Give two balanced reactions of the type to show the following property of sulphuric acid:
Acidic nature
Name the following:
The precipitate obtained by treating aqueous barium chloride with dilute sulphuric acid.
Give reason for the following:
Cotton clothes get burnt with concentrated sulphuric acid.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
State your observation for the following case:
Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur dioxide.
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?
Write the observation for the following:
Decomposition of bicarbonates by dil. H2SO4.
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with sodium sulphite.
