JEE Main 2025 Chemistry question
The correct order of basic nature in aqueous solution for the bases NH₃, H₂N – NH₂, CH₃CH₂NH₂, (CH₃CH₂)₂NH and (CH₃CH₂)₃N is :
- (1)NH₃ < H₂N – NH₂ < (CH₃CH₂)₃N < CH₃CH₂NH₂ < (CH₃CH₂)₂NH
- (2)NH₃ < H₂N – NH₂ < CH₃CH₂NH₂ < (CH₃CH₂)₂NH < (CH₃CH₂)₃N
- (3)NH₂ – NH₂ < NH₃ < CH₃CH₂NH₂ < (CH₃CH₂)₃N < (CH₃CH₂)₂NHCorrect
- (4)H₂N – NH₂ < NH₃ < (CH₃CH₂)₃N < CH₃CH₂NH₂ < (CH₃CH₂)₂NH
Answer: (3)
Solution
In water, basicity order of ethylamines is 2° > 3° > 1°. NH3 is more basic than hydrazine.
Question ID VK-002546