Homologous Series

Question 1

what is a homologous series

Answer 1

a homologous series is a family of compounds with the same general formula and similar chemical properties

Question 2

Shortened formula
e.g butane

Answer 2

CH3CH2CH2CH3

Question 3

saturated compounds

Answer 3

saturated compounds only contain c-c single bonds
and if added to bromine water it will remain yellow

Question 4

unsaturated compounds

Answer 4

unsaturated compounds contain at least one c=c double bond
and if added to bromine water it will decolourise

Question 5

isomers

Answer 5

isomers are compounds with the same molecular formula but different structural formulas

Question 6

Alkanes

Answer 6

1. homologous series of hydrocarbons
2. all end in the same suffix -ane
3. saturated hydrocarbons, onlu contain single c-c bonds
4. no reaction with bromine water

Question 7

Alkenes

Answer 7

1. homologous series of hydrocarbons
2. all end in the same suffix -ene
3. unsaturated hydrocarbons. only contain c=c double bonds
4. rapidly decolourise bromine water

Question 8

Alkanes general formula

Answer 8

C(n) H(2n+2)

Question 9

Alkene general formula

Answer 9

C(n) H(2n)

Question 10

Cycloalkanes

Answer 10

1. all end in the same suffix -ane
2. start with the prefix cyclo-
   3, saturated hydrocarbons , onlu contain c-c single bonds
3. no reaction with bromine water

Question 11

cycloalkanes general formula

Answer 11

C(n) H(2n)