Q.

Given below are two statements:                              [2025]

In the light of the above statements, choose the most appropriate answer from the options given below:

1 Both Statement I and Statement II are incorrect  
2 Both Statement I and Statement II are correct  
3 Statement I is incorrect but Statement II is correct  
4 Statement I is correct but Statement II is incorrect  

Ans.

(2)

In certain substrate molecules with certain type of arrangement of atoms i.e. generally the presence of unshared electron pair at β position to the leaving group, nucleophilic substitutions reactions occur at unexpectedly higher rate along with retention of configuration. This rate enhancement by neighbouring group participation is called anchimeric assistance. N can act as neighbouring group.