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Question
Comment, sulphuric acid is referred to as oil of vitriol.
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Solution
We refer to sulphuric acid as oil of vitriol because we obtained it as an oily viscous liquid by heating crystals of green vitriol.
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RELATED QUESTIONS
Give reasons for the following:
A piece of wood becomes black when concentrated sulphuric acid is poured on it.
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 |
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 conversion brought about? Give equation and condition:
Aqueous lead nitrate to lead sulphate.
Fill in the blank with appropriate word/words :
Oil of Vitriol is ___________
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) \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
Sulphuric acid is manufactured by the contact process.
Why H2SO4 is not obtained by directly reacting SO3 with water?
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the carbon.
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
