Key words

Question 1

Homologous series define

Answer 1

• Group of organic molecules that have same functional group
• have different length carbon chains
• have similar properties (e.g. b.p,m.p,density)

Question 2

Functional group

Answer 2

• atom or group of atoms in an organic molecule that is responsible for characteristic reaction of that molecule

Question 3

isomer define

Answer 3

molecules with the same molecular formula but have a different arrangement of atoms in space

Question 4

chain isomer define

Answer 4

• molecules that have the same molecular formula
• but their longest hydrocarbon chain is not the same, caused by branching

Question 5

position isomer

Answer 5

• molecules that have the same molecular formula - but have functional group in different places

Question 6

functional group isomer

Answer 6

• same molecular formula
• but have their structures changed so that they have different functional groups