0 days until NEET 2026 Every question counts. ā
š±
Did you know?
Mitochondria have their own DNA ā evidence they were once independent bacteria absorbed by early cells.
Which of the following sequence of reactions is suitable to synthesize chlorobenzene?
medium
Hydrocarbons
2022
chemistry
Benzene, Cl 2 , _2, 2 ā , anhydrous FeCl 3 _3 3 ā
Phenol, NaNO 2 , _2, 2 ā , HCl, CuCl
Explanation To solve this problem, we need to determine the correct sequence of reactions to synthesize chlorobenzene.
\newline Let's analyze each option:
\newline Option 1: Benzene, Cl 2 , _2, 2 ā , anhydrous FeCl 3 _3
\newline 3 ā
Our AI powered practice platform can help you achieve your doctor dream. Practice 2000+ previous year NEET questions More practice, more score
AI generated hints Use hints to get start solving
AI companion chat to clear doubts 24*7 Ask any question, get instant answers
AI generated solutions Get detailed step by step solutions
Check related NCERT content Read while solving
Track your progress Improve every day
Sign up / Login
ā¢ This is a classic example of electrophilic aromatic substitution.
ā¢ Benzene reacts with chlorine in the presence of anhydrous FeCl
to form chlorobenzene.
ā¢ The reaction is:
Benzene
+ C l 2 ā F e C l 3 + Cl_2 \xrightarrow{{FeCl}_3} + C l 2 ā F e Cl 3 ā ā Chlorobenzene
This sequence is correct for synthesizing chlorobenzene.
Option 2: Phenol, NaNO
HCl, CuCl
ā¢ This sequence involves diazotization and Sandmeyer reaction.
ā¢ Phenol is converted to a diazonium salt, which can be converted to chlorobenzene using CuCl.
ā¢ However, starting from phenol is not the most direct route to chlorobenzene.
Option 3: Benzene, HCl
ā¢ This option lacks a catalyst or halogen carrier, so it is not suitable for chlorination.
ā¢ Benzene does not react with HCl directly to form chlorobenzene.
Option 4: Aniline, HCl, Heating
ā¢ This involves converting aniline to a diazonium salt, followed by heating to form chlorobenzene.
ā¢ This is a possible route but requires additional steps and reagents.
Therefore, the most suitable sequence of reactions to synthesize chlorobenzene is Option 1.
