Chemistry Exam > Chemistry Questions > Choose the correct answer from the following ...
Start Learning for Free
Choose the correct answer from the following four choices.
Statement: Pyridine is more basic than pyrrole.
Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not.
Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.
Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.
a)Both Reason and Assertion are correct.
b)Both Reason and Assertion are wrong.
c)Reason is correct and Assertion is wrong.
d)Reason is wrong and Assertion is correct.
The correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Choose the correct answer from the following four choices.Statement: P...
- Pyridine is more basic than pyrrole because lone pair of electrons on N in pyridine and pyrrole are different in nature. These form a part of aromatic sextet in pyrrole, while not in pyridine.
- Pyrrole, C4H4NH (in which N contributes a lone pair) has a pKa−3.8 but pyridine (where N is part of the ring's double bond) has a pKa 5.14. Electron pair availability indicates the strength of basicity. In this case, pyridine is the stronger base.
- In pyrrole, the lone pair electrons of the nitrogen atom gets involved with the 2 carbon-carbon double bonds in the 5-member ring to form a conjugated system of pi electrons, leading to greater stability of the molecule.
- Pyridine, on the other hand, already has a stable conjugated system of 3 double bonds in the aromatic hexagonal ring, like benzene. Hence, the lone pair electrons on the N atom in pyridine can be easily donated to a H+ ion or a Lewis acid.
Most Upvoted Answer
Choose the correct answer from the following four choices.Statement: P...
Now, as both N are sp2, we can simply compare basicity by observing the electronic effects only and as lone pair of N inpyrrole is in resonance so this lone pair can't be donated wheareas the lonepair of N inpyridine is localised and hence ready for donation. Hence,pyridine is more basic than pyrrole .
Free Test
FREE
| Start Free Test |
Community Answer
Choose the correct answer from the following four choices.Statement: P...
- Pyridine is more basic than pyrrole because lone pair of electrons on N in pyridine and pyrrole are different in nature. These form a part of aromatic sextet in pyrrole, while not in pyridine.
- Pyrrole, C4H4NH (in which N contributes a lone pair) has a pKa−3.8 but pyridine (where N is part of the ring's double bond) has a pKa 5.14. Electron pair availability indicates the strength of basicity. In this case, pyridine is the stronger base.
- In pyrrole, the lone pair electrons of the nitrogen atom gets involved with the 2 carbon-carbon double bonds in the 5-member ring to form a conjugated system of pi electrons, leading to greater stability of the molecule.
- Pyridine, on the other hand, already has a stable conjugated system of 3 double bonds in the aromatic hexagonal ring, like benzene. Hence, the lone pair electrons on the N atom in pyridine can be easily donated to a H+ ion or a Lewis acid.
|
Explore Courses for Chemistry exam
|
|
Similar Chemistry Doubts
Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer?
Question Description
Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer?.
Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer?.
Solutions for Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemistry.
Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free.
Here you can find the meaning of Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer?, a detailed solution for Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Choose the correct answer from the following four choices.Statement: Pyridine is more basic than pyrrole.Reason: The nitrogen in pyrrole carries a proton while the nitrogen in pyridine does not. Assertion: Nitrogen in trigonal geometry are generally more basic than nitrogens in a tetrahedral geometry.a)Both Reason and Assertion are correct.b)Both Reason and Assertion are wrong.c)Reason is correct and Assertion is wrong.d)Reason is wrong and Assertion is correct.The correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Chemistry tests.
|
|
Explore Courses for Chemistry exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup