E2 Reactions tend to occur with [ Select ] bases. They will tend to make the [ Select ] alkene with hindered bases and the [ Select ] alkene with unhindered bases. This is an example of [ Select ]
1) strong
2) weak
3) primary
4) secondary
5) tertiary
6) primary
7) secondary
8) tertiary
9) E1 reaction
10) E2 reaction
11) SN1 reaction
12) SN2 reaction