KCET2026ChemistryAmines
Basic strength of alkylamines in aqueous phase is not decided by ________.
Options
- AInductive effect
- BSolvation effect
- CSteric hindrance
- 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