Chemistry

Question 1

1Proteins are natural polymers of

Easy

A. amino acids B. fatty acids C. ethene D. glucose

Question 2

2Polyethene is made from ethene by

Easy

A. addition polymerisation B. cracking C. fermentation D. condensation polymerisation

Question 3

3Nylon is an example of a

Easy

A. condensation polymer B. metal C. natural polymer D. monomer

Question 4

4Vulcanisation of rubber involves heating it with

Hard

A. hydrogen B. sulphur C. oxygen D. chlorine

Question 5

5Which of these is a natural polymer?

Easy

A. nylon B. polystyrene C. starch D. PVC

Question 6

6The repeating unit of poly(propene) is

Hard

A. −CF₂−CF₂− B. −CH₂−CHCl− C. −CH₂−CH(CH₃)− D. −CH₂−CH₂−

Question 7

7A plastic that softens on heating and can be remoulded is

Easy

A. a thermoplastic B. a ceramic C. a thermosetting plastic D. an alloy

Question 8

8Terylene (a polyester) is formed by

Hard

A. addition of ethene B. fermentation C. condensation of a diol and a dicarboxylic acid D. cracking

Question 9

9The monomer of poly(vinyl chloride) (PVC) is

Easy

A. propene B. ethene C. chloroethene D. styrene

Question 10

10Nylon is a condensation polymer because, as it forms,

Medium

A. it is heated B. nothing else is produced C. it contains carbon D. a small molecule such as water is given off