Correct answer is 3 Give reason why and why 1st option is not correct Q 1 Which - Chemistry - Hydrocarbons

Question

Correct answer is 3 Give reason why and why 1st option is not
correct?
Q 1 Which of the following is least reactive towards S N 2
mechanism?
(1)

(2) C H 2 = C H - C H 2 - C l
(3)

(4)

Vartika Jain · Accepted Answer

Dear Student,

SN2 reaction proceeds via the formation of a transition state
 Simultaneous removal of halide and attached of nucleophile takes place in case of SN2 reaction
The correct answer is (3) because cycloproyl chloride resists SN2 reaction due to ring strain
 The three membered ring is very small and so ring strain occurs here
 However, (1) is cyclopentyl chloride in which ring strain is less, and so it can undergo SN2 mechanism

Correct answer is 3. Give reason why and why 1st option is not correct? Q.1. Which of the following is least reactive towards S N 2 mechanism? (1) (2) C H 2 = C H - C H 2 - C l (3) (4)

Correct answer is 3. Give reason why and why 1st option is not correct?
Q.1. Which of the following is least reactive towards $S_{N} 2$ mechanism?
(1)

(2) $C H_{2} = C H - C H_{2} - C l$
(3)

(4)