Organic Chemistry

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Q1. 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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Q2. Which of the following compounds can be prepared by the reduction of nitrobenzene? (2022)

Solution:

Nitrobenzene can be reduced to aniline using reducing agents like Sn/HCl.

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Q3. 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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Q4. 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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Q5. 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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Q6. What is the main product when an amine reacts with a carbonyl compound? (2019)

Solution:

The main product of the reaction between an amine and a carbonyl compound is an amide.

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Q7. Which amine is derived from an aromatic compound? (2023)

Solution:

Aniline is derived from an aromatic compound (benzene) and contains an amino group.

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Q8. Which of the following compounds can be classified as a secondary amine? (2022)

Solution:

Dimethylamine is a secondary amine as it has two alkyl groups attached to the nitrogen atom.

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Q9. Which of the following compounds is a tertiary amine? (2022)

Solution:

Trimethylamine is a tertiary amine as it has three alkyl groups attached to the nitrogen atom.

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Q10. 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.