DP Chemistry (last assessment 2024)

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Question 18M.3.hl.TZ1.4c.i

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.hl.TZ1.4c.i
Level hl Paper 3 Time zone TZ1
Command term Draw Question number c.i Adapted from N/A
c.i.
[Maximum mark: 2]
18M.3.hl.TZ1.4c.i

Both HDPE (high density polyethene) and LDPE (low density polyethene) are produced by the polymerization of ethene.

An alternative method of polymerizing molecules is condensation polymerization. One of the earliest condensation polymers was nylon-6. A short section of the polymer chain of nylon-6 is shown below.

M18/4/CHEMI/HP3/ENG/TZ1/04.c

(c.i)

Draw the structure of the monomer from which nylon-6 is produced by a condensation reaction.

 

[2]

Markscheme

M18/4/CHEMI/HP3/ENG/TZ1/04.c.i/M

–NH2 AND –COOH

six C-atoms

 

Accept –COCl instead of –COOH.

[2 marks]

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