Exam (elaborations)
OCR GCSE JUNE 2022 CHEMISTRY B J258 QUESTION PAPER 3
- Module
- Maths Science
- Institution
- GCSE
OCR GCSE JUNE 2022 CHEMISTRY B J258 QUESTION PAPER 3
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, Oxford Cambridge and RSA
H
Friday 27 May 2022 – Morning
GCSE (9−1) Chemistry B (Twenty First Century Science)
J258/03 Breadth in Chemistry (Higher Tier)
Time allowed: 1 hour 45 minutes
You must have:
* 8 9 9 7 9 5 7 7 0 3 *
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Chemistry B
(inside this document)
You can use:
• an HB pencil
• a scientific or graphical calculator
* J 2 5 8 0 3 *
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 [ ].
• This document has 28 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2022 [601/8605/7] OCR is an exempt Charity
DC (CJ/CT) 300230/3 Turn over
, 2
Answer all the questions.
1 Mia investigates the rate of reaction when zinc reacts with dilute sulfuric acid.
She adds zinc pieces to dilute sulfuric acid at room temperature.
Fig. 1.1 shows the apparatus she uses:
Gas syringe
Zinc
Dilute sulfuric acid
Fig. 1.1
(a) Complete the symbol equation for the reaction.
Include a state symbol.
Zn(s) + H2SO4(aq) ZnSO4(aq) + .....................
[2]
(b) Mia measures the volume of gas in the gas syringe every two minutes.
Fig. 1.2 shows a graph of her results:
50
40
30
Volume
(cm3)
20
10
0
0 2 4 6 8 10 12
Time (minutes)
© OCR 2022
Fig. 1.2
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