Question

Which of the following is correct with respect to the – I effect of the substituents? (R = alkyl)

• A. -$N{H}_2$ > -$OR$ > -$F$
• B. -$N{R}_2$ < -$OR$ < -$F$
• C. -$N{H}_2$ < -$OR$ < -$F$
• D. -$N{R}_2$ > -$OR$ > -$F$

Answer 1

The correct option is C -$N{H}_2$ < -$OR$ < -$F$

–I effect increases on increasing the electronegativity. So, the correct order of –I effect is
-$N{H}_2$ < -$OR$ < -$F$