ICSEClass XChemistryOrganic Chemistry01 Mark2024 Easy

QQuestion

Conversion of Ethanol to Ethene by the action of concentrated sulphuric acid involves:

(a) Dehydration

(b) Dehydrogenation

(c) Dehydrohalogenation

(d) Hydrolysis

Exam-ready answer 01 Mark

Answer

(a) Dehydration

Explanation:

Dehydration involves elimination of elements of water from alcohol. Conc. sulphuric acid acts as dehydrating agent.

\mathrm{C_2H_5OH} \xrightarrow[\;170^\circ\mathrm{C}\;]{\mathrm{Conc.\ H_2SO_4\ [excess]}} \mathrm{C_2H_4} + \mathrm{H_2O}
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