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प्रश्न
Give reason for the following:
When diluting concentrated sulphuric acid, the acid should be added to water and not water to the acid.
उत्तर
When water is added to concentrated sulphuric acid the heat evolved may be sufficient to raise the temperature of water to its boiling point. This may throw acid violently out of the container. Thus concentrated sulphuric acid is diluted by adding a small amount of sulphuric acid to large amount of water.
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संबंधित प्रश्न
Give reasons for the following:
Sulphuric acid forms two types of salts with \[\ce{NaOH}\].
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 are the following conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.
Choose the current answer from the options given below :
Which of the following gas dissolves in H2SO4 to give alum?
In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used ?
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
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:
Copper
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.
What property of Sulphuric acid is exhibited in the following case?
In the preparation of HCI gas when it reacts with Sodium chloride.
