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Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value?
- a)(CH3)2NH
- b)CH3NH2
- c)(CH3)3N
- d)C6H5NH2
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Considering the basic strength of amines in aqueous solution, which on...
Arylamines are less basic than alkyl amines and even ammonia. This is due to resonance. In aryl amines the lone pair of electrons on N is partly shared with the ring and is thus less available for sharing with a proton.
In alkylamines, the electron releasing alkyl group increases the electron density on nitrogen atom and thus also increases the ability of amine for protonation.
Hence more the no. of alkyl groups higher should be the basicity of amine. But a slight discrepancy occurs in case of trimethyl amines due to steric effect. Hence the correct order is
In alkylamines, the electron releasing alkyl group increases the electron density on nitrogen atom and thus also increases the ability of amine for protonation.
Hence more the no. of alkyl groups higher should be the basicity of amine. But a slight discrepancy occurs in case of trimethyl amines due to steric effect. Hence the correct order is
(CH3)2 NH > CH3NH2> (CH3)3 N> C6H5 NH2
Most Upvoted Answer
Considering the basic strength of amines in aqueous solution, which on...
Arylamines are less basic than alkyl amines and even ammonia. This is due to resonance. In aryl amines the lone pair of electrons on N is partly shared with the ring and is thus less available for sharing with a proton.
In alkylamines, the electron releasing alkyl group increases the electron density on nitrogen atom and thus also increases the ability of amine for protonation.
Hence more the no. of alkyl groups higher should be the basicity of amine. But a slight discrepancy occurs in case of trimethyl amines due to steric effect. Hence the correct order is
In alkylamines, the electron releasing alkyl group increases the electron density on nitrogen atom and thus also increases the ability of amine for protonation.
Hence more the no. of alkyl groups higher should be the basicity of amine. But a slight discrepancy occurs in case of trimethyl amines due to steric effect. Hence the correct order is
(CH3)2 NH > CH3NH2> (CH3)3 N> C6H5 NH2
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Considering the basic strength of amines in aqueous solution, which on...
Secondary Amine is more stable than tertiary due to steric hindrance...
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Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value? a)(CH3)2NHb)CH3NH2c)(CH3)3Nd)C6H5NH2Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value? a)(CH3)2NHb)CH3NH2c)(CH3)3Nd)C6H5NH2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value? a)(CH3)2NHb)CH3NH2c)(CH3)3Nd)C6H5NH2Correct answer is option 'A'. Can you explain this answer?.
Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value? a)(CH3)2NHb)CH3NH2c)(CH3)3Nd)C6H5NH2Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value? a)(CH3)2NHb)CH3NH2c)(CH3)3Nd)C6H5NH2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value? a)(CH3)2NHb)CH3NH2c)(CH3)3Nd)C6H5NH2Correct answer is option 'A'. Can you explain this answer?.
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