Question

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

<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> NEET 2018

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

Answer 1

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

As the electronegativity increases $-I$ effect also increases.
The correct order with respect to $-I$ effect is $-N{H}_2<OR<-F$ .