Q.

Which of the following statements is not correct for a nucleophile            [2015]

1 Ammonia is a nucleophile.  
2 Nucleophiles attack low e- density sites.  
3 Nucleophiles are not electron seeking.  
4 Nucleophile is a Lewis acid.  

Ans.

(4)

Nucleophiles are electron rich species hence, they are Lewis bases.