Alkanes

Question 1

free radical

Answer 1

a reactive species containing an unpaired electron

Question 2

homolytic fission

Answer 2

breaking of a covalent bond, one of the bonded electrons goes to each atom - producing two free radicals

Question 3

initiation

Answer 3

first step in free radical substitution - free radicals are formed by UV radiation

Question 4

propogation

Answer 4

second step in free radical substitution - two repeated steps, new free radicals are made

Question 5

structural isomers

Answer 5

molecules with the same molecular formula but a different structural arrangement of atoms

Question 6

chain isomers

Answer 6

same molecular formula but different structures of the carbon skeleton

Question 7

position isomers

Answer 7

same molecular formula but different position of the functional group

Question 8

functional group isomers

Answer 8

same molecular formula but atoms are arranged differently to give a different functional group