Advertisements
Advertisements
Question
Arrange the following in increasing order of their basic strength:
C2H5NH2, C6H5NH2, NH3, C6H5CH2NH2 and (C2H5)2NH
Solution
Considering the inductive effect of alkyl groups, NH3, C2H5NH2, and (C2H5)2NH can be arranged in the increasing order of their basic strengths as:
NH3 < C2H5NH2 < (C2H5)2NH
Again, C6H5NH2 has proton acceptability less than NH3. Thus, we have:
C6H5NH2 < NH3 < C2H5NH2 < (C2H5)2NH
Due to the −I effect of C6H5 group, the electron density on the N-atom in C6H5CH2NH2 is lower than that on the N-atom in C2H5NH2, but more than that in NH3. Therefore, the given compounds can be arranged in the order of their basic strengths as:
C6H5NH2 < NH3 < C6H5CH2NH2 < C2H5NH2 < (C2H5)2NH
APPEARS IN
RELATED QUESTIONS
Give reasons for the following: (CH3)2NH is more basic than (CH3)3N in an aqueous solution.
Give reason for the following:
Primary amines have higher boiling point than tertiary amines.
- Write structures of different isomeric amines corresponding to the molecular formula C4H11N.
- Write the IUPAC names of all the isomers.
- What type of isomerism is exhibited by different pairs of amines?
How will you convert Cl−(CH2)4−Cl into hexan-1, 6-diamine?
Arrange the following:
In increasing order of boiling point:
C2H5OH, (CH3)2NH, C2H5NH2
Accomplish the following conversion:
Benzene to m-bromophenol
Give plausible explanation for each of the following:
Why are aliphatic amines stronger bases than aromatic amines?
Give reasons CH3NH2 is more basic than C6H5NH2.
Arrange the following in increasing order of basic strength :
C6H5NH2, C6H5NHCH3, C6H5N(CH3)2
Tertiary amines have lowest boiling points because ________________
Which of the following should be most volatile?
Acetic acid exist as dimer in benzene due to
Dimerisation of carboxylic acids is due to
Which of the following amines form maximum hydrogen bonds within themselves?
Which one of the following compounds will liberate CO2, when treated with NaHCO3?
Arrange the decreasing boiling point.
\[\ce{CH3COOH, C2H5OH, CH3NH2, CH3OCH3}\]
