How to deduce the polymerisation reaction for any alkene

2 marks · Normal

A student is given a sample of a polymer with the following repeat unit:

Give:

(a)

the name of the polymer

[1 mark]

(b)

the formula of the monomer used to make this polymer

[1 mark]

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

Show answer

(a) poly(fluoroethene)

(b) CH2=CHF

Also accept: Poly(fluoroethene) or poly(fluoroethylene); CH2=CHF

Common mistakes: Confusing polymer with monomer formula; Writing the polymer formula as the monomer

Show mark scheme and worked solution

Marking points

B1 (a) · 1 mark · Names the polymer poly(fluoroethene) or poly(fluoroethylene) (allow either).

B2 (b) · 1 mark · Gives the correct monomer formula: CH2=CHF.

Worked solution

a) The polymer is named poly(fluoroethene).

b) The formula of the monomer is CH2=CHF.