In an aqueous solution, what is the correct decreasing order of basic strength specifically for meth — Amines Chemistry Question

💡 Solution & Explanation

Aqueous basicity is a balance of the +I effect, hydration energy, and steric hindrance. For the small methyl group, hydration heavily favors less substituted amines, overcoming the +I effect of the 3° amine. The balanced order is $2^\circ > 1^\circ > 3^\circ > NH_3$.