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The structure of ethyl pentanoate is shown - HSC - SSCE Chemistry - Question 4 - 2021 - Paper 1
Question 4
The structure of ethyl pentanoate is shown. Which pair of chemicals would produce ethyl pentanoate by esterification? A. Ethene and pentan-1-ol B. Ethane and pentan... show full transcript
Worked Solution & Example Answer:The structure of ethyl pentanoate is shown - HSC - SSCE Chemistry - Question 4 - 2021 - Paper 1
Step 1
Which pair of chemicals would produce ethyl pentanoate by esterification?
Answer
To determine the correct pair of chemicals that would yield ethyl pentanoate through esterification, we first identify the components required for the reaction. Ethyl pentanoate is an ester formed by the reaction of an alcohol and a carboxylic acid.
Analyzing the Options:
- Ethene and pentan-1-ol: Ethene is an alkene and cannot directly react to form an ester with pentan-1-ol.
- Ethane and pentanoic acid: Ethane is an alkane and would not participate in the esterification process with pentanoic acid, which is a carboxylic acid.
- Ethanol and pentanoic acid: Ethanol (an alcohol) reacting with pentanoic acid (a carboxylic acid) can form ethyl pentanoate and is the correct reaction for esterification.
- Ethanoic acid and pentan-1-ol: While this combination involves an alcohol and a carboxylic acid, it would yield pentyl acetate, not ethyl pentanoate.
Conclusion:
The correct answer is C. Ethanol and pentanoic acid, as this pair correctly represents the components needed for the formation of ethyl pentanoate during the esterification process.