Verified Solution • 2025–26 Session moderate

QJEEM23Ch30dc: JEE Main 2023 Chemistry - Class 11 JEEM23Ch30dc Solution: The correct order in aqueous medium of basic strength in case…

The correct order in aqueous medium of basic strength in case of methyl substituted amines is :

Multiple Choice Options

  • A NH3>Me3N>MeNH2>Me2NH\mathrm{NH_3 > Me_3N > MeNH_2 > Me_2NH}
  • B Me3N>Me2NH>MeNH2>NH3\mathrm{Me_3N > Me_2NH > MeNH_2 > NH_3}
  • C Me2NH>MeNH2>Me3N>NH3\mathrm{Me_2NH > MeNH_2 > Me_3N > NH_3}
  • D Me2NH>Me3N>MeNH2>NH3\mathrm{Me_2NH > Me_3N > MeNH_2 > NH_3}

Step-by-Step Verified Solution

In aqueous medium basic strength is dependent on electron density on nitrogen as well as solvation of cation formed after accepting H+\mathrm{H}^{+} . After considering all these factors overall basic strength order is

\mathrm{Me}_2 \mathrm{NH}>\mathrm{MeNH}_2>\mathrm{Me}_3 \mathrm{N}>\mathrm{NH}_3

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