3. Properties of ethanol and ethanoic acid

Question:

3 m.

Answer the following questions:

During a science exhibition, Aarthi demonstrated the physical properties of ethanol and ethanoic acid. Both liquids were colourless and mixed completely with water.

a. Which condition is essential for the dehydration of ethanol to ethene?

Dilute \(H_2SO_4\) at \(373\ K\)
Hot copper at \(573\ K\)
Alkaline \(KMnO_4\)
Concentrated \(H_2SO_4\) at \(443\ K\)

b. Ethanoic acid is prepared industrially by the oxidation of ethanol using:

Dilute sulphuric acid
Concentrated nitric acid
Hot copper at \(573\ K\)
Alkaline potassium permanganate

c. What is the esterification reaction?

A reaction in which an acid reacts with a metal to form salt and hydrogen
A reaction in which a carboxylic acid reacts with an alcohol to form an ester and water
A reaction in which an alcohol is oxidised to form an acid
A reaction in which an alcohol reacts with a base to form salt and water

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