JEE Main 2015 · 10 Apr · Shift 1 · Chemistry Q56

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ChemistrySingle correct+4 / -1Question 56 of 90

Arrange the following amines in the order of increasing basicity.

p-Methoxyaniline < p-nitroaniline < aniline < CH₃NH₂

Aniline < p-methoxyaniline < p-nitroaniline < CH₃NH₂

CH₃NH₂ < aniline < p-methoxyaniline < p-nitroaniline

p-Nitroaniline < aniline < p-methoxyaniline < CH₃NH₂

Answer and worked solution

Official answer: D

Aryl amines are weaker bases than alkyl amines. Among them, -OCH₃ (para) donates electrons and raises basicity, while -NO₂ withdraws and lowers it:
$p\text{-nitroaniline} < \text{aniline} < p\text{-methoxyaniline} < \ce{CH3NH2}.$

Topics:Amines Acidity and basicity

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JEE Main 2015 · 10 Apr · Shift 1, Chemistry question 56