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Question
Which of the following is more appropriate reason for aniline being less basic than aliphatic amines?
Which of the following is more appropriate reason for aniline being less basic than aliphatic amines?
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Solution
The correct option is B Positive mesomeric effect
NH2 gives e- away from the group.
So e- density of N decrease and hence less available for Protonation.
So less Basicity.
In aliphatic amines, no mesomerism (resonance) takes place. Thus it has more electrons available for donation thus shows more basic property.
NH2 gives e- away from the group.
So e- density of N decrease and hence less available for Protonation.
So less Basicity.
In aliphatic amines, no mesomerism (resonance) takes place. Thus it has more electrons available for donation thus shows more basic property.
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