Benzene reacts with chlorine in the presence of an iron catalyst to produce

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Q: 80 (CDS-I/2002)
Benzene reacts with chlorine in the presence of an iron catalyst to produce

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,12,29,12,14,12,3

keywords: 

{'benzene reacts': [0, 0, 1, 0], 'benzene hexachloride': [0, 0, 1, 0], 'benzyl chloride': [0, 0, 1, 0], 'benzoyl chloride': [0, 0, 1, 0], 'iron catalyst': [0, 0, 1, 0], 'chlorobenzene': [0, 0, 1, 0], 'chlorine': [8, 2, 8, 9]}

The correct answer is option 3 - Chlorobenzene.

When benzene reacts with chlorine in the presence of an iron catalyst, it undergoes a substitution reaction called electrophilic aromatic substitution. In this reaction, one of the hydrogen atoms in benzene is replaced by a chlorine atom, resulting in the formation of chlorobenzene.

Option 1 - Benzene hexachloride is incorrect because hexachloride indicates six chlorine atoms attached to the benzene ring, which is not the product formed in this reaction.

Option 2 - Benzyl chloride is incorrect because in this compound, a chlorine atom is attached to a benzyl (CH2Ph) group, where Ph represents a phenyl group. This is a different compound than chlorobenzene.

Option 4 - Benzoyl chloride is incorrect because in this compound, a chlorine atom is attached to a benzoyl group (C6H5CO) which is also different from chlorobenzene.

Therefore, the correct answer is option 3 - Chlorobenzene.