NEET Amines — Set 10

Question 1

The weakest base among the following in aqueous solution is:

Accepted Answer

Aniline ($ \ce{C6H5NH2} $) is the weakest due to resonance delocalizing the nitrogen lone pair, reducing basicity, as per the PDF.

Question 2

The geometry around nitrogen in $ \ce{CH3CH2NH2} $ is:

Accepted Answer

Ethylamine ($ \ce{CH3CH2NH2} $) has $ sp^3 $ hybridized nitrogen with three sigma bonds and one lone pair, giving a pyramidal geometry, as per the PDF’s structure.

Question 3

The number of hydrogen bonds a molecule of $ \ce{CH3CH2NH2} $ can form with water is:

Accepted Answer

Ethylamine ($ \ce{CH3CH2NH2} $), a primary amine, has two N-H bonds to donate and one lone pair to accept, forming three hydrogen bonds with water, as per the PDF’s solubility discussion.

NEET Chemistry: Amines — Practice Set 10

Q1. The weakest base among the following in aqueous solution is:

Q2. The geometry around nitrogen in \( \ce{CH3CH2NH2} \) is:

Q3. The number of hydrogen bonds a molecule of \( \ce{CH3CH2NH2} \) can form with water is:

Q4. Which amine forms a product with no N-H bonds when reacted with \( \ce{CH3COCl} \)?

Q5. The strongest base in aqueous solution among the following is:

Q6. The shape of the nitrogen atom in \( \ce{CH3NHCH3} \) is:

Q7. The product of \( \ce{CH3CH2NH2} \) reacting with \( \ce{CHCl3} \) and alcoholic KOH is:

Q8. The reaction of \( \ce{C6H5CH2Cl} \) with \( \ce{NH3} \) produces:

Q9. The order of basicity in gaseous phase for amines with the same alkyl group is:

Q10. What is the IUPAC name of the compound \( \ce{CH3CH2NH2} \)?