Alkenes

Question 1

What s the reaction when hydrogen is reacted with cyclopentene in the presence of a nickle catalyst?

Answer 1

Hydrogenation

Question 2

What are the products when cyclopentene is reacted with steam in the presence of an acid catalyst?

Answer 2

Cyclopentanol as an OH group has been added

Question 3

What does an atom economy of 100% mean?

Answer 3

There is a single product from two or more reactants

Question 4

What is the colour change of bromine water in the presence of an alkene?

Answer 4

Brown to colourless (NOT CLEAR)

Question 5

What are the advantages and disadvantages of incinerating polymers

Answer 5

They do not end up in landfill polluting the soil however carcinogens and harmful waste gases are released

Question 6

What waste gas is produced when PVC is burnt?

Answer 6

Hydrochloric acid

Question 7

What are some environmental ways to make polymers break down?

Answer 7

Photo degradable Polymers (bonds will break down in UV light)
Biodegradable Polymers (bacteria can easily degrade the polymer)

Question 8

What does carbon neutral mean?

Answer 8

making or resulting in no net release of carbon dioxide into the atmosphere.

Question 9

What is Markownikoffs’s rule?

Answer 9

The electrophile is more likely to bond to the carbon with the most carbons bonded to it.

Question 10

What is the difference between hetero and homolytic fission

Answer 10

Hetero - makes

Homo - makes

Question 11

What is the name of the shape around each carbon atom in an alkene?

Answer 11

Trigonal