wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In a SN2 substitution reaction of the type

RBr+Cl DMF−−RCl+Br

Which one of the following has the highest relative rate?


A
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

CH2CH2CH2CH2Br

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

(CH3)3CBr

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

CH2CH2CH2CH2Br


For SN2 reaction, as the steric crowding decreases, rate of reaction increases. So reactivity order of alkyl halides follow the order:
1 alkyl halide>2 alkyl halide>3 alkyl halideCH2CH2CH2CH2Br is the least crowded and 1 alkyl halide, it is the most reactive in given options.
Hence, (b) is the correct option.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Reactions of Haloalkanes
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon