15.2 organohalogen compounds in the environment

Question 1

what is the characteristic reaction mechanism for alkanes?

Answer 1

free radical substitution

Question 2

what are organohalogen compounds?

Answer 2

molecules than contain at least 1 halogen atom joined to a carbon chain

Question 3

list 3 sources of CFCs in the atmosphere

Answer 3

• refrigerants
• air conditioning units
• aerosol sprays

Question 4

name the layer of the atmosphere above the troposphere

Answer 4

stratosphere

Question 5

explain why ozone depletion should be of major concern to humans

Answer 5

depletion of the ozone layer will allow more harmful UV-b to penetrate the troposphere leading to increased incidence of skin cancer and genetic damage