Identify the mechanistic pathways, respectively, for the products in the following reaction.
A. E1, SN1
B. E1, SN2
C. E2, SN1
D. E2, SN2
The substrate is tertiary ( bromine is attached to the carbon which is attached to three other carbons). The nucleophile is neutral and weak. For tertiary substrate with weak nucleophile, SN1 and E1 are the preferred reactions. Choice A