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प्रश्न
What is the name given to the salts of sulphurous acid?
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उत्तर
Hydrogen sulphites and Sulphites
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संबंधित प्रश्न
Give reasons for the following:
Sulphuric acid forms two types of salts with NaOH.
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 |
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Ferrous sulphate solution and ferric sulphate solution. (Using sodium hydroxide solution)
What would you observe in the following case?
Sulphur trioxide is dissolved in water on a large scale.
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 conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.
Fill in the blank with appropriate word/words :
For the reaction SO2 + O2⇌ SO3 + Heat, the favourable conditions are _________ and __________.
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).
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the copper.
Which property of sulphuric acid accounts for its use as a dehydrating agent?
