#O C R
GCSE (9–1) Chemistry B (Twenty First Century Science)
J258/02 Depth in Chemistry (Foundation Tier)
June 2023
You must have:
a ruler (cm/mm)
the Data Sheet for GCSE (9-1) Chemistry B (inside this
F
document)
Time allowed: 1 hour 45 minutes
You can use:
a scientific or graphical calculator
an HB pencil
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 90.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 24 pages.
ADVICE
• Read each question carefully before you start your answer.
2023 Turn over
, 2
1 Poly(ethene) is a polymer which forms when ethene monomers react together in an addition
polymerisation reaction.
The structure of an ethene monomer and the repeating unit of poly(ethene) are shown in
Fig. 1.1.
Fig. 1.1
H H H H
C C C C
H H
H H
n
Ethene monomer Repeating unit of poly(ethene)
(a) Which statements are true only for an ethene monomer, which are true only for
the repeating unit of poly(ethene) and which are true for both?
Tick (✓) one box in each row.
True only True only for
for an the repeating True for both
ethene unit of
monomer poly(ethene)
Contains a double bond
Contains a single bond
Contains covalent bonds
Represents a molecule
with a long chain structure
[4]
(b) PVC is another addition polymer.
The structure of the repeating unit of PVC is shown in Fig. 1.2.
Fig. 1.2
H Cl
C C
H H
n
Draw the structure of a monomer of PVC.
[1]
2023
, 3
2 Models are used to represent the structure of compounds.
(a) (i) Draw lines to connect each formula to the correct model.
Formula Model
HCl
NH3
H2
CO2
[3]
(ii) Which formula contains an atom of a Group 17 (7) element?
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