Explain why an alkylamine is more basic than ammonia.

Solution

(a) The basicity of amines depends on the +I effect of the alkyl groups. With increase in alkyl group the +I effect will increase which will increase the ease of donation of lone pair electron. Amine will accept a proton and from cation will be stabilized in water by salvation (by hydrogen bonding).better the salvation by hydrogen bonding higher will be the basic strength.
Hence, alkyl amine is more basic than ammonia
CH₃NH₂ > NH₃

Some More Questions From Amines Chapter

Arrange the following in increasing order of their basic strength:
C₂H₅NH_2, C₆H₅NH₂, NH₃, C₆H₅CH₂NH₂ and (C₂H₅)₂NH

Arrange the following in increasing order of their basic strength:
C₂H₅NH₂, (C₂H₅)₂NH, (C₂H₅)₃N, C₆H₅NH₂

Arrange the following in increasing order of their basic strength:
CH₃NH₂, (CH₃)₂NH, (CH₃)₃N, C₆H₅NH₂, C₆H₅ CH₂NH₂

Write reactions of the final alkylation product of aniline with excess of methyl iodide in the presence of sodium carbonate solution.

Write chemical reaction of aniline with benzoyl chloride and write name of the product obtained.

Write structures of different isomers corresponding to the molecular formula C₃H₉N. Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.

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Amines

Explain why an alkylamine is more basic than ammonia.

Some More Questions From Amines Chapter

Arrange the following in increasing order of their basic strength:
C₂H₅NH_2, C₆H₅NH₂, NH₃, C₆H₅CH₂NH₂ and (C₂H₅)₂NH

Arrange the following in increasing order of their basic strength:
C₂H₅NH₂, (C₂H₅)₂NH, (C₂H₅)₃N, C₆H₅NH₂

Arrange the following in increasing order of their basic strength:
CH₃NH₂, (CH₃)₂NH, (CH₃)₃N, C₆H₅NH₂, C₆H₅ CH₂NH₂

Write reactions of the final alkylation product of aniline with excess of methyl iodide in the presence of sodium carbonate solution.

Write chemical reaction of aniline with benzoyl chloride and write name of the product obtained.

Write structures of different isomers corresponding to the molecular formula C₃H₉N. Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.

Convert 3-Methylaniline into 3-Nitrotoluene .

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NCERT Sample Papers

Entrance Exams Preparation

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Amines

Explain why an alkylamine is more basic than ammonia.

Some More Questions From Amines Chapter

Arrange the following in increasing order of their basic strength:C2H5NH2, C6H5NH2, NH3, C6H5CH2NH2 and (C2H5)2NH

Arrange the following in increasing order of their basic strength:C2H5NH2, (C2H5)2NH, (C2H5)3N, C6H5NH2

Arrange the following in increasing order of their basic strength:CH3NH2, (CH3)2NH, (CH3)3N, C6H5NH2, C6H5 CH2NH2

Write reactions of the final alkylation product of aniline with excess of methyl iodide in the presence of sodium carbonate solution.

Write chemical reaction of aniline with benzoyl chloride and write name of the product obtained.

Write structures of different isomers corresponding to the molecular formula C3H9N. Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.

Convert 3-Methylaniline into 3-Nitrotoluene .

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Arrange the following in increasing order of their basic strength:
C₂H₅NH_2, C₆H₅NH₂, NH₃, C₆H₅CH₂NH₂ and (C₂H₅)₂NH

Arrange the following in increasing order of their basic strength:
C₂H₅NH₂, (C₂H₅)₂NH, (C₂H₅)₃N, C₆H₅NH₂

Arrange the following in increasing order of their basic strength:
CH₃NH₂, (CH₃)₂NH, (CH₃)₃N, C₆H₅NH₂, C₆H₅ CH₂NH₂

Write structures of different isomers corresponding to the molecular formula C₃H₉N. Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.