The correct order of basic nature in aqueous solution for the bases NH3, H2N–NH2, CH3CH2NH2, (CH3CH2 — JEE Mains Chemistry Past Papers Chemistry Question
Question
The correct order of basic nature in aqueous solution for the bases NH3, H2N–NH2, CH3CH2NH2, (CH3CH2)2NH and (CH3CH2)3N is : (A) H2N–NH2 < NH3 < (CH3CH2)3N < CH3CH2CH2 < (CH3CH2)2NH (B) NH3 < H2N–NH2 < CH3CH2NH2 < (CH3CH2)2NH < (CH3CH2)3N (C) NH3 < H2N–NH2 < (CH3CH2)3N < CH3CH2NH2 < (CH3CH2)2NH (D) NH2–NH2 < NH3 < CH3CH2NH2 < (CH3CH2)3N < (CH3CH2)2NH | JEE(Main) 2025 | DATE : 02-04-2025 (SHIFT-1) | PAPER-1 | CHEMISTRY PAGE # 6
Answer: D
💡 Solution & Explanation
NH2–NH2 < Amines R–NH2 And amine in aqueous phase follow 2º > 1º > 3º > NH2 (kb order)
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