alkenes

Question 1

alkenes + halogens = halogenoalkanes (EA)

Answer 1

reagent: bromine
conditions: room temp

Question 2

alkenes + hydrogen halides = halogenoalkanes (EA)

Answer 2

reagent: HCl or HBr
conditions: room temp

Question 3

alkenes + sulfuric acid (EA)

Answer 3

reagent: concentrated H2SO4
conditions: room temp

Question 4

electrophile

Answer 4

e pair acceptor

Question 5

alkyl

Answer 5

e releasing

Question 6

positive inducing effect

Answer 6

alkyls push e away within a covalent bond

Question 7

order of stability

Answer 7

1) tertiary - 3 alkyl groups surrounding carbon (most stable)
2) secondary - 2 alkyl groups surrounding carbon
3) primary - 1 alkyl groups surrounding carbon (least stable)

Question 8

Explain why there is an attraction between a C=C double bond and Br2

Answer 8

C=C electron rich
Br-Br becomes polarised
δ+ Br attracted to C=C