Organic Chemistry

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Q1. Which of the following is a tertiary amine? (2022)

Solution:

N(CH3)3 (trimethylamine) is a tertiary amine as it has three alkyl groups attached to the nitrogen.

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Q2. Which of the following compounds is an aromatic amine? (2019)

Solution:

Aniline is an aromatic amine as it contains a benzene ring attached to the amine group.

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Q3. What type of amine is formed by the reaction of ammonia with an alkyl halide? (2019)

Solution:

The reaction of ammonia with an alkyl halide primarily forms a primary amine.

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Q4. What is the hybridization of the nitrogen atom in amines? (2020)

Solution:

The nitrogen atom in amines is sp3 hybridized, as it forms three sigma bonds and has one lone pair.

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Q5. Which of the following compounds can be used to distinguish between primary, secondary, and tertiary amines? (2023)

Solution:

Nitrous acid can be used to distinguish between primary, secondary, and tertiary amines, as it reacts differently with each type.

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Q6. What is the boiling point trend among amines? (2020)

Solution:

All of the above statements are true regarding the boiling point trends of amines.

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Q7. What type of amine is formed when ammonia reacts with an alkyl halide? (2022)

Solution:

The reaction of ammonia with an alkyl halide initially forms a primary amine.

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Q8. What is the product of the reaction between ammonia and an alkyl halide? (2023)

Solution:

The product of the reaction between ammonia and an alkyl halide is an amine.

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Q9. What type of isomerism is shown by the amines CH3NH2 and C2H5NH2? (2023)

Solution:

CH3NH2 (methylamine) and C2H5NH2 (ethylamine) exhibit structural isomerism as they have different carbon skeletons.

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Q10. Which reagent is used to convert an amine to an amide? (2023)

Solution:

An acid chloride is used to convert an amine to an amide through acylation.