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प्रश्न
A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (ii).
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent
(i) Preparation of hydrogen chloride.
(ii) Preparation of ethane from ethanol
(iii) Preparation of copper sulphate from copper oxide.
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उत्तर
(i) Preparation of hydrogen chloride. - Non-volatile acid
(ii) Preparation of ethane from ethanol - Oxidizing agent
(iii) Preparation of copper sulphate from copper oxide. - Dilute acid (typical acid properties)
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संबंधित प्रश्न
Give two balanced reactions of the type to show the following property of sulphuric acid:
Non-volatile nature
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
How are the following conversion brought about? Give equation and condition:
Sucrose to sugar charcoal.
Choose the current answer from the options given below :
The catalyst used for the oxidation of SO2 to SO3 in contact process is
- 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.
Write the equation of the following reaction:
Sulphur is heated with concentrated sulphuric acid.
Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar
Identify the salts P and Q from the observation given below:
On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution. Which is soluble in ammonium hydroxide solution.
The salt is formed when concentrated sulphuric acid reacts with KNO3 above 200°C.
Hydrogen chloride gas is prepared in the laboratory by the action of concentrated sulphuric acid on sodium chloride.
State the method of collection of the gas formed above.
