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प्रश्न
What is the name given to the salts of sulphurous acid?
उत्तर
Hydrogen sulphites and Sulphites
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संबंधित प्रश्न
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 |
Complete the following equations :
C + cons. H2SO4
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
How are the following conversion brought about? Give equation and condition:
Sulphur trioxide to oleum.
How will you distinguish between conc. HCl and conc. H2SO4?
A, B, C and D summarise the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non-Volatile acid
C = Oxidising agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following :
(i) Preparation of hydrogen chloride gas
(ii) Preparation of copper sulphate from copper oxide
(iii) Action of cone, sulphuric acid on sulphur
How will you identify?
Sulphur dioxide gas
Write a balanced chemical equation when hot and concentrated sulphuric acid reacts with the following:
Sulphur
Write a balanced chemical equation when hot and concentrated sulphuric acid reacts with the following:
\[\ce{NaOH}\]
Which property of sulphuric acid accounts for its use as a dehydrating agent?
