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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
What is the name given to the salts of sulphurous acid?
Give reason for the following:
Red brown vapours are produced when concentrated sulphuric acid is added to hydrogen bromide.
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
Name the following:
Products obtained by dissolving sulphur dioxide and chlorine in water.
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
How are the following conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.
How are the following conversion brought about? Give equation and condition:
Aqueous lead nitrate to lead sulphate.
Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reaction (a) to (e). Some properties may be repeated.
A. Acid
B. Dehydrating agent
C. Non-volatile acid
D. Oxidizing agent
(a) \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
(b) \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
(c) \[\ce{NaCl + 2H2SO4 -> NaHSO4 + HCl}\]
(d) \[\ce{CuO + 2H2SO4 -> CuSO4 + H2O}\]
(e) \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
Name the following:
A sulphate insoluble in water.
Sulphuric acid is manufactured by the contact process.
Name the chemical used to dissolve SO3 and also name the product formed. Give all the main reactions to this process.
