GOC and Organic Chemistry BasicshardMCQ SINGLE

In the gaseous phase, where solvation effects are absent, what is the correct sequence of basic streGOC and Organic Chemistry Basics Chemistry Question

Question

In the gaseous phase, where solvation effects are absent, what is the correct sequence of basic strength for methylamines and ammonia based purely on the positive inductive ($+I$) effect?

Answer: B

💡 Solution & Explanation

In the gaseous phase, basicity is determined solely by the $+I$ effect of the alkyl groups. More alkyl groups donate more electron density to the nitrogen atom, making its lone pair more available for donation. Thus, $3^\circ > 2^\circ > 1^\circ > NH_3$.

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