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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?
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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.
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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 .
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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.
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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?
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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.
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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.
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