Topic 13: Haloalkanes

Question 1

Haloalkane

Answer 1

Halogen replacing H on an alkane

Question 2

Free-radical substitution steps

Answer 2

Initiation
Propagation
Termination

Question 3

Initiation

Answer 3

X2 —> UV light 2X○
Cl2 —> 2Cl○

Question 4

Propagation

Answer 4

CH4 + Cl○ —> HCl(g) (misty fumes) + ○CH3 DRAW ON LEFT HAND SIDE
○CH3 + Cl —> CH3Cl + Cl○

Question 5

Termination

Answer 5

Cl○ + Cl○ —> Cl2
Cl○ + ○CH3 —> CH3Cl
○CH3 + ○CH3 —> C2H6
There are more, add them i cbb atm

Question 6

CFCs

Answer 6

Chlorofluorocarbons eg
CHClF2 —> UV light Cl○ + CHF○
Cl○ + O3 —> ClO○ + O2
ClO○ + O3 —> 2O2 + Cl○
Ozone forms layer