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प्रश्न
Which property of sulphuric acid accounts for its use as a dehydrating agent?
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उत्तर
Sulphuric acid is a powerful dehydrating agent on account of its strong affinity towards water.
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संबंधित प्रश्न
Complete the following equations :
S + conc.HNO3 →
Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.
How are the following conversion brought about? Give equation and condition:
Sulphur trioxide to oleum.
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).
How will you identify?
Sulphur dioxide gas
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the sulphur.
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the copper.
The following is the typical property of dilute acid. Complete it by inserting suitable words:
\[\ce{Carbonate/hydrogen carbonate + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
Arrange the following as per the instruction given in the bracket:
Sulphuric acid, Phosphoric acid, Acetic acid (increasing order of number of replaceable H atoms per molecule).
