Multiple Choice QuestionsMark the correct statement.
Methylamine is slightly acidic
Methylamine is less basic than NH3
Methylamine is stronger base than NH3
Methylamine forms salt with alkalies
C.
Methylamine is stronger base than NH3
Basicity depends upon the availability of lone pair of electrons for donation. Presence of electron releasing substituent (like -CH3, -C2H5) increases the electron density over nitrogen, thus makes nitrogen more capable for donating electrons. Hence, methylamine (CH3H2)is a stronger base than NH3.
Due to its basic nature, CH3NH2 forms salt with acids.
In the carbylamine reaction, R-X is converted to R-Y via the intermediate Z. R-X, R-Y and Z, respectively, are
RNH2, RNC, Carbene
RNH2, RNC, nitrene
RNC, RNH2, carbene
ROH, RNC, nitrene
Which one of the following is the strongest base ?
2,4,6-trinitroaniline
2,4,6-trinitro-N,N-dimethyl aniline
N, N-dimethyl aniline
Anline
Hinsberg's reagent is
benzene sulphonyl chloride
benzene sulphonic acid
phenyl isocyanide
benzene sulphonamide
The given reaction is called as
Schmidt rearrangement
Curtius rearrangement
Hofmann rearrangement
Lossen rearrangement
Correct basicity of the following compounds are
I. Aniline
II. Pyridine
III. Pyrrole
IV. Guanidine
I >II >III >IV
III >I >II >IV
IV >II >I >III
II >IV>III >I
One amine is more basic than ammonia and the other is less basic than ammonia. The two amines are respectively
N-methyl ethanamine and N, N-dimethyl ethanamine
aniline and N-methyl aniline
N-methyl aniline and aniline
N, N-dimethyl aniline and benzenamine
One of the isomer of C4H11N is optically active. It must be a
primary amine
secondary amine
tertiary amine
all isomers are optically inactive
Which of the following compounds cannot be identified by carbylamine test?
CHCl3
C6H5-NH-C6H5
C6H5NH2
CH3CH2NH2
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