Question:

The basicity of aniline is less than that of cyclohexylamine. This is due to

Updated On: Jun 8, 2022
  • \($+ R$\) effect of \(${- NH2}$\) group

  • \($-I$\) effect of \(${- NH2}$\) group

  • \($-R$\) effect of \(${-NH2}$\) group

  • hyperconjugation effect.
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The Correct Option is A

Solution and Explanation

\(${-NH2}$\) has a \($+R$\) effect, it donates electrons to the benzene ring. As a result of resonance, the lone pair of electrons on the N atom gets delocalized over the benzene ring and thus it is less readily available for protonation. Hence aniline is a weaker base than cyclohexyl amine.

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Concepts Used:

Classification of Organic Compounds

Organic Compounds can be classified into:

Classification based on the structure:

The classification of organic compounds is based on structure such as:

  1. Acyclic or open chain compounds - Acyclic compounds are just opposite to cyclic compounds because their molecules don’t form any ring. It is called open-chain compounds because they have a linear structure.
  2. Cyclic or closed chain compounds - Cyclic compounds are also known as “Ring compounds.”