Chapter 13 Alkenes

Question 1

WHAT MAKES A COMPOUND UNSATURATED [got this bare wrong ]

Answer 1

If it has atleast one carbon carbon double bond OR TRIPLE BOND

Question 2

Homolgous series?

Answer 2

Family of compounds with SIMILAR CHEMICAL PROPERTIES

• Same functional group
• differ by Ch2
• same general formula

Question 3

What observations happen in the oxidation of an alcohol using K2Cr2O7

Answer 3

Orange Cr2O7 2-ions oxidise to become green Cr 3+ ions

Question 4

Suitable oxidising mixture?

Answer 4

H+

Cr2O7 2-

Question 5

How to get rid off polymers

Answer 5

Landfills

• recycling , (feedstock good)
• using as fuel

Question 6

Recycling polymer

How

Answer 6

Reduces impact as not in landfill + conserving already finite resources

B) chopped and flaked washed dried and remade

Question 7

PVC recycling?

Answer 7

Dangerous as recycling there is chlrojen which gives hydrogen chrloide if burnt
- have to dissolce it

Question 8

Fuel

Answer 8

Drives Turbane when polymers incinerated to produce heat

Question 9

Feedstock recycling?

Answer 9

This is chemical process of removing monomers from waste polymers

Good thing is don’t have to wash or sort

Question 10

Bio plastic alternative?

Answer 10

Made from plant starch

Renewable and sustainable

Question 11

Biodegradable polymers

Answer 11

Broken by microorganisms inti water co2 or other bio glacial molecule

• made from glucose
• say to compost like food as it all in ine

Question 12

Photodegradable polymers alternative?

Answer 12

When plant based not possible this instead

Uses light to break bonds and initiate degradation