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प्रश्न
Comment, sulphuric acid is referred to as King of chemicals.
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उत्तर
Sulphuric acid is called the King of Chemicals because there is no other manufactured compound that is used by such a large number of key industries.
Some uses of sulphuric acid are:
- It is used as a laboratory reagent.
- Metallurgy plays a significant role in the manufacture of explosives.
- In storage batteries.
- It is used in dyes and drugs.
- In the refining of petroleum.
- In fertilisers.
- To prepare other acids, etc.
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संबंधित प्रश्न
Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
Give reason for the following:
Concentrated sulphuric acid must be stored in airtight bottles.
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
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).
What property of conc. H2SO4 is made use of in the following case? Give an equation for the reaction in this case:
It’s reaction with ethanol.
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:
\[\ce{Sulphide + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
