Leaving tendency of the following group in decreasing order is

Question

Leaving tendency of the following group in decreasing order is (A) IV > II > I > III (B) I > II > III > IV (C) II > IV > I > III (D) I > IV > II > III.

Tardigrade Admin · Accepted Answer

As the negative. charge of leaving group can be delocalised into the phenyl ring and due to the -I effect delocalization of negative charge will be more so the leaving group activity order is IV > II > I > III

Q. Leaving tendency of the following group in decreasing order is

$I V > II > I > III$

$I > II > III > I V$

$II > I V > I > III$

$I > I V > II > III$ .

As the negative. charge of leaving group can be delocalised into the phenyl ring and due to the $- I$ effect delocalization of negative charge will be more so the leaving group activity order is $I V > II > I > III$

Q. Leaving tendency of the following group in decreasing order is

IV>II>I>III

I>II>III>IV

II>IV>I>III

I>IV>II>III.

As the negative. charge of leaving group can be delocalised into the phenyl ring and due to the −I effect delocalization of negative charge will be more so the leaving group activity order is IV>II>I>III

$I V > II > I > III$

$I > II > III > I V$

$II > I V > I > III$

$I > I V > II > III$ .

As the negative. charge of leaving group can be delocalised into the phenyl ring and due to the $- I$ effect delocalization of negative charge will be more so the leaving group activity order is $I V > II > I > III$