MCQ
Among the following the weakest base is
- A$C_6H_5CH_2NH_2$
- B$C_6H_5CH_2NHCH_3$
- C$NO_2CH_2NH_2$
- ✓$CH_3NHCHO$
✓
Answer
Correct option: D.
$CH_3NHCHO$
d
It is weakest base because the lone pair of electrons of the $N$ atom is delocalized on account of resonance with the carbonyl group since $N O_{2}$ has a poweful $-I$ effect, the correct of basic strength is
It is weakest base because the lone pair of electrons of the $N$ atom is delocalized on account of resonance with the carbonyl group since $N O_{2}$ has a poweful $-I$ effect, the correct of basic strength is
$C_{6} H_{5} N H C H_{3}>C_{6} H_{5} C H_{2} N H_{2}>O_{2} N C H_{2} N H_{2}>C H_{3} N H C H O$
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