JEE Main 2026 · 6 Apr · Shift 1 · Chemistry Q68 · Dronacharya Exams

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ChemistrySingle correct+4 / -1Question 68 of 75

Arrange the following compounds according to increasing order of boiling points.

n - $\ce{C4H9OH}$ (A), n - $\ce{C4H9NH2}$ (B), n - $\ce{C4H10}$ (C) and $\ce{C2H5NHC2H5}$ (D).

A

C < B < A < D

B

D < C < B < A

C

C < D < B < A

D

D < B < A < C

Answer and worked solution

Official answer: C

Boiling points follow hydrogen bonding:

n-Butane (C) has none.
Diethylamine (D), a 2° amine, has one N-H.
n-Butylamine (B), a 1° amine, has two N-H.
n-Butanol (A) has an O-H, which forms stronger hydrogen bonds than N-H.

Order: C < D < B < A.

(C)

Topics:Amines Hydrogen bonding

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