NEET Amines — Set 16

Question 1

The strongest base among the following in gaseous phase is:

Accepted Answer

In the gaseous phase, basicity depends on electron donation to nitrogen. $ \ce{(CH3)3N} $ (tertiary amine) has three methyl groups, making it the strongest base, as noted in the PDF.

Question 2

Which amine reacts with $ \ce{HNO2} $ to form $ \ce{CH3CH2OH} $ and $ \ce{N2} $?

Accepted Answer

Ethylamine ($ \ce{CH3CH2NH2} $) reacts with $ \ce{HNO2} $ to produce ethanol ($ \ce{CH3CH2OH} $) and nitrogen gas, as per the PDF’s chemical properties.

Question 3

Which of the following amines has the lowest molecular weight?

Accepted Answer

Methylamine ($ \ce{CH3NH2} $) has the smallest alkyl group (1 carbon) among the options, giving it the lowest molecular weight, as per the PDF’s classification.

NEET Chemistry: Amines — Practice Set 16

Q1. The strongest base among the following in gaseous phase is:

Q2. Which amine reacts with \( \ce{HNO2} \) to form \( \ce{CH3CH2OH} \) and \( \ce{N2} \)?

Q3. Which of the following amines has the lowest molecular weight?

Q4. The basicity of amines is due to:

Q5. The reaction of \( \ce{CH3NH2} \) with \( \ce{HNO2} \) at 273-278 K yields:

Q6. The boiling point of \( \ce{CH3CH2NH2} \) is higher than \( \ce{CH3CH3} \) because of:

Q7. Which amine can be prepared by Gabriel phthalimide synthesis?

Q8. The number of isomers of \( \ce{C3H9N} \) that liberate nitrogen gas with nitrous acid is:

Q9. Which amine produces a tertiary amine when treated with excess \( \ce{CH3CH2Cl} \)?

Q10. Which amine forms a soluble product in alkali when reacted with Hinsberg’s reagent?