Question

Which is maximum basic in nature ?
Please answer in detail.​

Answer 1

Answer:

Basicity is the availability of electrons. In the given compounds basicity is maximum due to electron releasing methyl group attached to it. Aniline is resonance stabilised, methyl amine is having 3 alpha hydrogens where as ethyl amine is having 2 alpha hydrogen.

Answer 2

Option 2. is the most basic in nature

• Basicity or acidity plays a role in reactivity and thus are very dependent on each other.
• In option 1, the lone pair on nitrogen is involved in mesomeric stabilisation of the compound and is thus not free for interaction.
• In option 2, the lone pair on nitrogen is relatively free as the compound in not involved in mesomeric stabilisation and is thus very basic as it is capable of interacting freely.
• In option 3, the lone pair on nitrogen is donated to the benzene ring to help with mesomeric stabilisation and is relatively less basic.
• In option 4, the lone pair on nitrogen atom is involved in mesomeric stabilisation of the compound.
• Therfore, option 2. is the most basic in nature.