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प्रश्न
Name the following:
A sulphate insoluble in water.
उत्तर
Anhydrous calcium sulphate
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संबंधित प्रश्न
What is the name given to the salts of sulphurous acid?
Copy and complete the following table:
| Column 1 Substance reacted with acid |
Column 2 Dilute or concentrated acid |
Column 3 Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
How does sulphuric acid occur in nature?
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.
Sulphuric acid is manufactured by the contact process.
Name the catalyst used.
Write a balanced chemical equation when hot and concentrated sulphuric acid reacts with the following:
Sugar
What property of conc. \[\ce{H2SO4}\] is made use of the following case? Give an equation for the reaction on the same:
Its reaction with ethanol.
Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reactions (i) to (v). Some properties may be repeated:
- Typical acid
- Dehydrating agent
- Non-volatile acid
- Oxidizing agent
- \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
- \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
- \[\ce{NaCl + H2SO4 -> NaHSO4 + HCl}\]
- \[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
- \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
Identify the following:
The element having electronic configuration 2, 8, 6.
