alkenes and alkynes

Question 1

alkenes

Answer 1

unsaturated hydrocarbons containing at least 1 double bond between two carbons

Question 2

general formula alkenes

Answer 2

CnH2n

Question 3

are alkenes reactive

Answer 3

more reactive than alkanes due to the double bond

Question 4

ethene and propene uses

Answer 4

polymerised to produce polypropene which is used to make many plastic objects

Question 5

isomers of alkenes

Answer 5

alkenes that contain more than 3 carbon atoms, isomers may be formed from branches on carbon-carbon double bond is in a different position

Question 6

trend of boiling points in alkenes

Answer 6

boiling point increases and molecular mass does, straight chain isomers have a higher boiling point than branched isomers, poisition of double carbon bond has little influence

Question 7

alkynes

Answer 7

unsaturated hydrocarbons that contains at least one triple carbon -carbon bond

Question 8

general formula alkynes

Answer 8

CnH2n-2

Question 9

structural isomers alkynes

Answer 9

exist for alkynes conatining more than 3 carbon atoms, can be different position of side chain or triple carbon bond

Question 10

boiling point trend alkynes

Answer 10

boiling point increases and molecular mass does, straight chain isomers have a higher boiling point than branched isomers, triple bond position can have a significant impact

Question 11

what is the reactive part of the hydrocarbon

Answer 11

halogen, double carbon bond, triple carbon bond