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प्रश्न
Give two balanced reactions of the type to show the following property of sulphuric acid:
Dehydrating nature
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उत्तर
H2SP4 has a great affinity for water. It readily removes elements of water from other compounds, i.e., it acts as a dehydrating agent.
\[\ce{\underset{(Glucose)}{C6H12O6} ->[Conc. H2SO4] 6C + 6H2O}\]
\[\ce{\underset{(Cane Sugar)}{C12H22O11} ->[Conc. H2SO4] \underset{Sugar Charcoal}{12C_{(s)} + 11H2O}}\]
संबंधित प्रश्न
Write balanced chemical equations for the action of dilute sulphuric acid on sodium sulphite.
In the contact process for the manufacture of sulphuric acid give the equations for the conversion of sulphur trioxide to sulphuric acid.
Give reason for the following:
When concentrated sulphuric acid is added to blue crystalline copper sulphate, it turns powdery white.
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Sulphur dioxide
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Lead sulphate from lead nitrate.
- Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
- In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two steps involved in D.
- What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
- Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
Dilute sulphuric acid will produce a white precipitate when added to a solution of ______.
Give balanced chemical equation to prepare the following salt:
Lead sulphate from lead carbonate
Rewrite the following statement by adding the correct word, as shown in the example:
|
Example: Given Statement: Ammonia changes moist red litmus to blue. Correct Statement: Aqueous ammonia changes moist red litmus to blue. |
Sulphuric acid acts as a dehydrating agent.
