Jun '12
26
MCAT Question of the Day | MCAT Course


  • Q:

    Both nucleophilic substitution and addition deal with the attack of a nucleophile onto an electrophile. The primary difference between the two, however, is that

     

    A

    nucleophilic addition involves a good leaving group while nucleophilic substitution does not.

    B

    nucleophilic addition can follow either SN1 or SN2 mechanisms while nucleophilic substitutions can only follow SN1 mechanisms.

    C

    nucleophilic substitution and addition are competing mechanisms for the same reaction.

    D

    nucleophilic addition involves the replacement of a π bond with two new σ bonds while nucleophilic substitution primarily occurs with the replacement of existing σ bonds.




    Tags: Molecular Bonding | Suggest a tag
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