In conversion from ethanol to ethene, concentrated sulphuric acid is used as:

Oxidizing agent

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Precipitating agent

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Dehydrating agent

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Reducing agent

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Solution

The correct option is C
Dehydrating agent

During conversion of ethanol into ethene in the presence of conc. sulphuric acid, a molecule of water is lost. In this reaction, conc. sulphuric acid acts as a dehydrating agent.

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Similar questions

Q. Ethanol can be converted to ethene which can then be changed to ethane.
Choose the correct word or phrase from the brackets to complete the following sentences:
(i) The conversion of ethanol to ethene is an example of ........... (dehydration, dehydrogenation).
(ii) Converting ethanol to ethene requires the use of ......... (concentrated hydrochloric acid, concentrated nitric acid, concentrated sulphuric acid).
(iii) The conversion of ethene to ethane is an example of ......... (hydration, hydrogenation).
(iv) The catalyst used in the conversion of ethene to ethane is commonly ............ (iron, cobalt, nickel).

(a) Which property of sulphuric acid accounts for its use as a dehydrating agent ?

(b) Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write on equation each to illustrate the above mentioned properties of sulphuric acid.

Q. When ethanol is heated with excess of concentrated sulphuric acid at

170^{o} C

, it gets converted to ethene. In this reaction, concentrated sulphuric acid acts as:

(c) (i) Name the process used for the large scale manufacture of sulphuric acid.
(ii) Which property of sulphuric acid accounts for its use as a dehydrating agent?
(iii) Concentrated sulphuric acid is both an oxidizing agent and non-volatile acid. Write one equation each to illustrate the above mentioned properties of sulphuric acid.

Q. Why is Concentrated Sulphuric acid not used as a drying agent to dry Hydrogen gas?

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In conversion from ethanol to ethene, concentrated sulphuric acid is used as:

The correct option is C Dehydrating agent During conversion of ethanol into ethene in the presence of conc. sulphuric acid, a molecule of water is lost. In this reaction, conc. sulphuric acid acts as a dehydrating agent.

The correct option is C
Dehydrating agent

During conversion of ethanol into ethene in the presence of conc. sulphuric acid, a molecule of water is lost. In this reaction, conc. sulphuric acid acts as a dehydrating agent.