Organic Chemistry - Carboxylic Acids

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Q1. Which carboxylic acid is responsible for the sour taste in sour milk? (2020)

Solution:

Lactic acid is produced during the fermentation of lactose in sour milk, giving it a sour taste.

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Q2. Which carboxylic acid is known for its use in the food industry as a preservative? (2023)

Solution:

Acetic acid is widely used in the food industry as a preservative and flavoring agent.

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Q3. Which of the following carboxylic acids has a pungent odor? (2022)

Solution:

Butanoic acid has a pungent odor, often described as rancid butter.

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Q4. What is the IUPAC name of the carboxylic acid with the formula C3H6O2? (2023)

Solution:

The IUPAC name of C3H6O2 is Propanoic acid, which has a three-carbon chain.

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Q5. Which of the following carboxylic acids has the highest boiling point? (2020)

Solution:

Butanoic acid has the highest boiling point due to its longer carbon chain and greater molecular weight.

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Q6. Which carboxylic acid is known for its use in the production of nylon? (2019)

Solution:

Adipic acid is used in the production of nylon, particularly nylon 6,6.

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Q7. Which carboxylic acid is found in citrus fruits? (2023)

Solution:

Citric acid is the carboxylic acid found in citrus fruits, contributing to their sour taste.

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Q8. Which reaction is used to prepare carboxylic acids from alcohols? (2020)

Solution:

Oxidation of alcohols leads to the formation of carboxylic acids.

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Q9. Which carboxylic acid is known for its role in the Krebs cycle? (2019)

Solution:

Citric acid plays a crucial role in the Krebs cycle, which is a key metabolic pathway.

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Q10. Which carboxylic acid is used in the production of nylon? (2023)

Solution:

Adipic acid is used in the production of nylon, specifically nylon-6,6.