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KCET2026ChemistryAmines

Basic strength of alkylamines in aqueous phase is not decided by ________.

Options

  1. AInductive effect
  2. BSolvation effect
  3. CSteric hindrance
  4. DHyperconjugation effect

Correct answer

D. Hyperconjugation effect

Step-by-step solution

The basic strength of alkylamines in an aqueous solution is determined by the interplay of three main factors: 1. Inductive effect: The +I effect of alkyl groups increases the electron density on the nitrogen atom, making it more basic. 2. Solvation effect: The conjugate acid formed after accepting a proton is stabilized by hydrogen bonding with water molecules. Greater solvation leads to higher basicity. 3. Steric hindrance: Bulky alkyl groups can hinder the approach of a proton and also decrease the extent of sol

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