Question

Question 9. Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?
(a) CH3COOH
(b) CH3CH2OH
(c) CH3OH
(d) CH3CHO​

Answer 1

▪ Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid ?

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Option C

[CH3OH ]

Answer 2

CH3COOH will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid. (Option a)

• CH3COOH is called acetic acid and is also known as Ethanoic acid.

• It reacts with ethanol to produce an ester called ethyl ethanoate, in the presence of concentrated sulphuric acid, which acts as a catalyst.
• This is a reversible and very slow reaction.
• The process of formation of esters from carboxylic acids and alcohols in the presence of sulphuric acid acting as a catalyst is known as esterification.