Organic Compounds Containing Halogens Question 85
Question: Chlorobenzene is
Options:
A) Less reactive than benzyl chloride
B) More reactive than ethyl bromide
C) Nearly as reactive as methyl chloride
D) More reactive than isopropyl chloride
Show Answer
Answer:
Correct Answer: A
Solution:
Chlorobenzene is less reactive than benzyl chloride In chlorobenzene the lone pairs present on Cl atom get involved in resonance with $ \pi $ electrons of benzene due to which $ C-Cl $ bond acquires double bond character Hence, reactivity decreases. $ \underset{\text{more reactive}}{\mathop{C_2H_5-Cl}}>\underset{\text{less reactive}}{\mathop{C_6H_5-CH_2-Cl}} $