Question

Based on the combined effects of inductive effect and solvation, which of the following represents correct order of decreasing basic strength of amines?

• A. Secondary amine $>$ Tertiary amine $>$ Primary amine
• B. Primary amine $>$ Secondary amine $>$ Tertiary amine
• C. Tertiary amine $>$ Secondary amine $>$ Primary amine
• D. Primary amine $>$ Tertiary amine $>$ Secondary amine

Answer 1

The correct option is A Secondary amine $>$ Tertiary amine $>$ Primary amine

Based on the combined effects of inductive effect and solvation, the following represents correct order of decreasing basic strength of amines
secondary amine $>$ tertiary amine $>$ primary amine
This is the order we observe in the aqueous solution. Secondary amines are strongest bases.