Ch 8: Alkyl Halides and Elimination Reactions

Question 1

Reaction conditions for S_N2 and E2 reactions are similar, they both use a __________ solvent.

Answer 1

polar/protic

Question 2

An E1 reaction exhibits _____-_____ kinetics.

Answer 2

first-order

(It depends only on the concentration of the alkyl halide.)

Question 3

Can a tertiary alkyl halide undergo an S_N2 reaction?

Answer 3

No, this will always be an E2 reaction.

Question 4

The E1 and E2 mechanisms both involve the same number of bonds broken and formed. The only difference is the ______.

Answer 4

timing

Question 5

In an E1 reaction, the leaving group comes off _____ the β proton is removed, and the reaction occurs in _ steps.

Answer 5

BEFORE

2

p. 314

Question 6

In an E2 reaction, the leaving group comes off _____ the β proton is removed, and the reaction occurs in _ step(s).

Answer 6

AS

1

p. 314

Question 7

You can only do an E2 reaction if the structure of the alkyl halide allows it! What must be present in order to do an E2 reaction?

Answer 7

There must be hydrogen atoms on the β-carbon(s).