What type of smell is generally found in the ester formed from ethanoic acid and ethanol?
Answer and explanation
Correct answer: Sweet fruity smell
The governing concept is esterification, in which ethanoic acid reacts with ethanol in the presence of concentrated sulfuric acid to form an ester, ethyl ethanoate, and water: CH3COOH + C2H5OH → CH3COOC2H5 + H2O. Esters commonly have pleasant, sweet or fruity odours, and ethyl ethanoate is associated with a fruity smell. Thus option A is correct; the other smells are not characteristic of this ester.
Frequently asked questions
What is the correct answer to this question?
Sweet fruity smell
Why is this the correct answer?
The governing concept is esterification, in which ethanoic acid reacts with ethanol in the presence of concentrated sulfuric acid to form an ester, ethyl ethanoate, and water: CH3COOH + C2H5OH → CH3COOC2H5 + H2O. Esters commonly have pleasant, sweet or fruity odours, and ethyl ethanoate is associated with a fruity smell. Thus option A is correct; the other smells are not characteristic of this ester.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Carbon and its Compounds.
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