Which from following amines has highest pK_b value?

Q23 / 150 · MHT CET 2024 (11 May Shift 1) · Chemistry

Which from following amines has highest $\mathrm{pK}_{\mathrm{b}}$ value?

Correct answer
A
Arylamine
B
Tertiary alkanamine
C
Secondary alkanamine
D
Primary alkanamine

Solution

In general, arylamines are weaker bases than aliphatic amines. Hence, arylamine is the weakest base and its $\mathrm{pK}_{\mathrm{b}}$ value is the highest among the given aliphatic amines.

Hence, the correct answer is option: 'A'.

Relevant Questions

Identify the substrate 'A' in the following reaction.20 Apr, 2026 (M)Preparation and Properties of Amines
Aniline on treatment with / HCl at about gives a compound A, which on further treatment with CuCN / KCN gives a compound B, which when react20 Apr, 2026 (E)Preparation and Properties of Amines
Which from following amines is obtained by Gabrial phthalimide synthesis?19 Apr, 2026 (M)Preparation and Properties of Amines
Which from following compounds is obtained when propionamide is treated with and concentrated aqueous KOH solution ?19 Apr, 2026 (M)Preparation and Properties of Amines
Which from following reactions occurs by removal of -CO- group from amide ?19 Apr, 2026 (E)Preparation and Properties of Amines
Which from following statements is NOT correct regarding Hofmann's exhaustive alkylation?18 Apr, 2026 (M)Preparation and Properties of Amines