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The replacement of chlorine of chlorobenzene to give
phenol requires drastic conditions, but the chlorine
of 2,4-dinitrochlorobenzene is readily replaced since
- a)nitro groups make the aromatic ring electron richat ortho/para positions
- b)nitro groups withdraw electrons from the metaposition of the aromatic ring
- c)nitro groups donate electrons at meta position
- d)nitro groups withdraw electrons from ortho/paraposition of the aromatic ring
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The replacement of chlorine of chlorobenzene to givephenol requires dr...
Since the nitro groups are highly deactivating due to -I effect they withdraw electrons readily from the ortho/para positions. They being electronegative have a strong tendency to attract electrons towards themselves. option d is correct
Community Answer
The replacement of chlorine of chlorobenzene to givephenol requires dr...
Explanation:
Withdrawal of electrons by nitro groups:
- Nitro groups are electron-withdrawing groups due to their strong electron-withdrawing ability.
- When nitro groups are present on an aromatic ring, they withdraw electrons from the ortho and para positions of the ring.
- This electron withdrawal makes the ortho and para positions more electron-poor compared to the meta position.
Effect on reactivity:
- In the case of 2,4-dinitrochlorobenzene, the nitro groups withdraw electrons from the ortho and para positions where the chlorine atoms are located.
- The electron withdrawal by the nitro groups makes the chlorine atoms more susceptible to nucleophilic substitution reactions.
- As a result, the chlorine atoms in 2,4-dinitrochlorobenzene can be readily replaced under milder conditions compared to chlorobenzene, where the chlorine is not as easily substituted due to the electron-rich nature of the aromatic ring.
Conclusion:
- The presence of nitro groups in 2,4-dinitrochlorobenzene facilitates the replacement of chlorine due to their electron-withdrawing nature, which enhances the reactivity of the chlorine atoms towards substitution reactions.
Withdrawal of electrons by nitro groups:
- Nitro groups are electron-withdrawing groups due to their strong electron-withdrawing ability.
- When nitro groups are present on an aromatic ring, they withdraw electrons from the ortho and para positions of the ring.
- This electron withdrawal makes the ortho and para positions more electron-poor compared to the meta position.
Effect on reactivity:
- In the case of 2,4-dinitrochlorobenzene, the nitro groups withdraw electrons from the ortho and para positions where the chlorine atoms are located.
- The electron withdrawal by the nitro groups makes the chlorine atoms more susceptible to nucleophilic substitution reactions.
- As a result, the chlorine atoms in 2,4-dinitrochlorobenzene can be readily replaced under milder conditions compared to chlorobenzene, where the chlorine is not as easily substituted due to the electron-rich nature of the aromatic ring.
Conclusion:
- The presence of nitro groups in 2,4-dinitrochlorobenzene facilitates the replacement of chlorine due to their electron-withdrawing nature, which enhances the reactivity of the chlorine atoms towards substitution reactions.
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The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer?
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The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer?.
The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer?.
Solutions for The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of The replacement of chlorine of chlorobenzene to givephenol requires drastic conditions, but the chlorineof 2,4-dinitrochlorobenzene is readily replaced sincea)nitro groups make the aromatic ring electron richat ortho/para positionsb)nitro groups withdraw electrons from the metaposition of the aromatic ringc)nitro groups donate electrons at meta positiond)nitro groups withdraw electrons from ortho/paraposition of the aromatic ringCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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