JEE PYQ: Haloalkanes And Haloarenes Question 9
Question 9 - 2020 (06 Sep Shift 2)
The increasing order of the boiling point of the major products A, B and C of the following reactions will be:
(a) Propene + HBr $\xrightarrow{(\text{C}_6\text{H}_5\text{CO})_2\text{O}_2}$ A (anti-Markovnikov) (b) Propene + HBr $\rightarrow$ B (Markovnikov) (c) But-1-ene + HBr $\rightarrow$ C
(1) B < C < A
(2) C < A < B
(3) A < B < C
(4) A < C < B
Show Answer
Answer: (1)
Solution
(A) = 1-bromopropane, (B) = 2-bromopropane, (C) = 2-bromobutane. The boiling points of isomeric haloalkanes decrease with increase in branching. So order of B.P. is A > C > B.
BETA
