Advertisements
Advertisements
प्रश्न
Making use only of substances chosen from those given below:
Dilute sulphuric acid
Sodium carbonate
Zinc
Sodium sulphite
Lead
Salcium carbonate
Give the equation for the reaction by which you could obtain:
(i) Hydrogen
(ii) Sulphur dioxide
(iii) Carbon dioxide
(iv) Zinc Carbonate (two steps required).
Advertisements
उत्तर
(i) Zinc reacts with dilute sulphuric acid to evolve hydrogen.
\[\ce{Zn + H2SO4 → ZnSO4 + H2 ^}\]
(ii) Sodium sulphite reacts with dilute sulphuric acid to give sulphur dioxide.
\[\ce{Na2SO3 + H2SO4 → Na2SO4 + H2O + SO2 ^}\]
(iii) Sodium carbonate reacts with dilute sulphuric acid to give carbon dioxide.
\[\ce{Na2CO3 + H2SO4 → Na2SO4 + H2O + CO2 ^}\]
(iv) Zinc reacts with dilute sulphuric acid to form zinc sulphate, which in reaction with sodium carbonate forms zinc carbonate.
\[\ce{ Zn + H2SO4 → ZnSO4 + H2 ^}\]
\[\ce{ZnSO4 + Na2CO3 → ZnCO3 + Na2SO4}\]
APPEARS IN
संबंधित प्रश्न
Give reasons for the following:
Sulphuric acid forms two types of salts with NaOH.
Give reasons for the following:
A piece of wood becomes black when concentrated sulphuric acid is poured on it.
Copy and complete the following table:
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated acid | Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
Write a balanced chemical equation for each of the following reactions :
Action of dilute sulphuric acid on sodium hydroxide.
How does sulphuric acid occur in nature?
How are the following conversion brought about? Give equation and condition:
Sulphur trioxide to oleum.
Sulphuric acid is manufactured by the contact process.
Name the catalyst used.
Which property of sulphuric acid accounts for its use as a dehydrating agent?
The following is the typical property of dilute acid. Complete it by inserting suitable words:
\[\ce{Carbonate/hydrogen carbonate + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
What property of Sulphuric acid is exhibited in the following case?
In the preparation of HCI gas when it reacts with Sodium chloride.
