Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main20205 Sep 2020Morning ShiftChemistryAminesActual

The increasing order of basicity of the following compounds is :

Options

  1. A( A ) < ( B ) < ( C ) < ( D )
  2. B( B ) < ( A ) < ( D ) < ( C )
  3. C( D ) < ( A ) < ( B ) < ( C )
  4. D( B ) < ( A ) < ( C ) < ( D )

Correct answer

B. ( B ) < ( A ) < ( D ) < ( C )

Step-by-step solution

The basic nature of amines can be explained on the basis hybridisation. The basic nature order is sp 3 > sp 2 > sp . If the lone pair on nitrogen involved in resonance, then it is less basic than others. In the molecules A, B and D, the nitrogen is sp 2 hybridised. In the pyrrole molecule the lone pair on nitrogen involving in conjugation to get aromaticity. Hence, C is most basic and B is least basic.

Practice Amines on Quantrex Academy →

More from Amines

Match the major products obtained in the reactions given in List-I with the corresponding structures in List-II and choose the correct option. List-I List-II (P) (1) (Q) (2) (R) (3 2026In the following reaction sequence, P , Q , S and T are the major products. The correct statement(s) about P , Q , S and T is(are) 2026Passage: Consider the following reaction sequence in which J , K , L and M are the major products. Given: Atomic mass (in amu): H : 1 , C : 12 , N : 14 , O : 16 , S : 32 , Br : 80 2026Which statements are True? A. In Hoffmann bromamide degradation, 4 moles of NaOH and 2 moles of Br₂ are consumed per mole of an amide B. Hoffmann bromamide reaction is not given by 2026Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all intermediate reactions) 2026The number of compounds from the following which can undergo reaction with Br ₂ /KOH (alcoholic) to give respective products and these respective products can also be obtained sepa 2026Consider the following sequence of reactions. The percentage of nitrogen in the yellow product (X) formed is _______%. (Nearest Integer) (Given Molar mass in g mol ⁻¹ H:1, C:12, N: 2026Given below are two statements : Statement I: Heating benzamide with bromine in an ethanolic solution of sodium hydroxide will give benzylamine. Statement II: Nitration of aniline 2026 Full Amines list All JEE Main PYQs