Q1. What is the general formula for secondary amines? (2023)
Solution:
The general formula for secondary amines is R2NH, where R represents an alkyl group.
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Q2. What is the boiling point trend among primary, secondary, and tertiary amines?
Solution:
Primary amines have higher boiling points than secondary and tertiary amines due to stronger hydrogen bonding.
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Q3. What is the general formula for secondary amines? (2021) 2021
Solution:
The general formula for secondary amines is R2NH, where R represents an alkyl or aryl group.
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Q4. What is the product of the reaction between an amine and an acid?
Solution:
The reaction between an amine and an acid produces a salt, as the amine acts as a base and accepts a proton from the acid.
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Q5. What is the boiling point trend of amines compared to alkanes?
Solution:
Amines have higher boiling points than alkanes due to hydrogen bonding.
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Q6. Which amine is used in the preparation of dyes?
Solution:
Aniline is widely used in the preparation of dyes due to its reactivity.
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Q7. Which of the following amines is the most basic? (2023) 2023
Solution:
Dimethylamine is the most basic due to the electron-donating effect of the two methyl groups, which increases the availability of the lone pair on nitrogen.
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Q8. What is the IUPAC name of the compound CH3CH2NH2? (2021)
Solution:
The IUPAC name of CH3CH2NH2 is Ethylamine, as it consists of an ethyl group attached to an amine.
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Q9. What is the main product when an amine reacts with an alkyl halide?
Solution:
The main product is a quaternary ammonium salt when an amine reacts with an alkyl halide, as the amine can be further alkylated.
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Q10. Which reaction is used to prepare amines from alkyl halides? (2020)
Solution:
Amines can be prepared from alkyl halides through nucleophilic substitution reactions where the amine acts as a nucleophile.
