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The equilibrium constant of the reaction of amines with _____ is taken as a measure of its basic character.(a) an acid(b) a base(c) water(d) a Lewis baseThis question was addressed to me during a job interview.This intriguing question originated from Amines Chemical Reactions topic in division Amines of Chemistry – Class 12

Answer» RIGHT OPTION is (C) water

Explanation: For the reaction,

RNH2 + H2O ↔ RNH3^+ + OH^–, the DISSOCIATION constant is,

Keq = ([RNH3^+][OH^–])/([RNH2][H2O])

\(\Rightarrow\) Keq[H2O] = ([RNH3^+][OH^–])/[RNH2]

\(\Rightarrow\) KB = ([RNH^3+][OH^–])/[RNH2]


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