Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202116 MarchEvening Shift
Exam
JEE Main
Year
2021
Date
16 March
Shift
Evening Shift
Subject
Chemistry
Chapter
Amines

JEE Main 2021 · 16 March · Evening Shift · Chemistry · Amines

Which of the following is least basic?

Which of the following is least basic?Which of the following is least basic?Which of the following is least basic?Which of the following is least basic?Which of the following is least basic?

Options

  1. A(CH3CO)N¨HC2H5\left({CH}_{3}CO\right)\overset{¨}{N}{HC}_{2}{H}_{5}
  2. B(C2H5)3N¨{\left({C}_{2}{H}_{5}\right)}_{3}\overset{¨}{N}
  3. C(CH3CO)2N¨H{\left({CH}_{3}CO\right)}_{2}\overset{¨}{N}H
  4. D(C2H5)2N¨H{\left({C}_{2}{H}_{5}\right)}_{2}\overset{¨}{N}H

Correct answer

C. (CH3CO)2N¨H{\left({CH}_{3}CO\right)}_{2}\overset{¨}{N}H

Step-by-step solution

For the given compounds:

(1) Which of the following is least basic?; L.P.L . P . on Nitrogen is delocalised.

(2) Which of the following is least basic?; L.P.L . P . on Nitrogen is localised.

(3) Which of the following is least basic?;

L.P.L . P . on Nitrogen is delocalised due to conjugation with both Which of the following is least basic?

(Hence least basic)

(4) CH3−CH2−N¨H−CH2−CH3{CH}_{3} - {CH}_{2} - \overset{¨}{N}H - {CH}_{2} - {CH}_{3}; L.P.L . P . on Nitrogen is localised.

Practice Amines on Quantrex Academy →

More from Amines

Match the major products obtained in the reactions given in List-I with the corresponding… JEE Advanced 2026In the following reaction sequence, P , Q , S and T are the major products. The correct… JEE Advanced 2026Passage: Consider the following reaction sequence in which J , K , L and M are the major… JEE Advanced 2026Which statements are True? A. In Hoffmann bromamide degradation, 4 moles of NaOH and 2… JEE Main 2026Consider the following organic reaction sequence. Choose the final product (X) from the… JEE Main 2026The number of compounds from the following which can undergo reaction with Br _2 /KOH… JEE Main 2026Consider the following sequence of reactions. The percentage of nitrogen in the yellow… JEE Main 2026Given below are two statements : Statement I: Heating benzamide with bromine in an… JEE Main 2026 Full Amines list All JEE Main PYQs