Friday 12 June 2026 ? Morning
GCSE (9?1) Combined Science A
(Gateway Science)
J250/10 Chemistry (Higher Tier)
Time allowed: 1 hour 10 minutes
*
2 You must have:
6 ? a ruler (cm/mm)
9 H5 ? the Data Sheet for GCSE (9?1) Combined Science A
2 (Chemistry) (inside this document)
9 You can use:
3 ? a scientific or graphical calculator8
6 ? an HB pencil
9 * J 2 5 0 1 0 *
*
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 page 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 60.
? 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 16 pages.
ADVICE
? Read each question carefully before you start your answer.
© Cambridge OCR 2026 [601/8687/2] Cambridge OCR is an exempt Charity
DC (SL/TC) 364876/6 Turn over
for more:
, 2
Section A
You should spend a maximum of 20 minutes on this section.
Write your answer to each question in the box provided.
1 Which element is a grey solid at room temperature?
A Fluorine
B Chlorine
C Bromine
D Iodine
Your answer [1]
2 The table shows the time taken for four metals to completely react with water.
The mass and surface area of the metals are the same.
Which metal is most reactive?
Metal Time (s)
A 1
B 7
C 15
D 23
Your answer [1]
3 What is not a main stage of a life-cycle assessment?
A Cost
B Disposal
C Manufacture
D Transportation
Your answer [1]
© Cambridge OCR 2026
for more:
, 3
4 Which process is used to separate the fractions in crude oil?
A Chromatography
B Filtration
C Fractional distillation
D Simple distillation
Your answer [1]
5 Large hydrocarbon molecules are cracked to make smaller, more useful products.
Decane, C10H22 is cracked to make octane, C8H18 and one other product.
What is the formula of the other product?
A CH4
B C2H2
C C2H4
D C4H2
Your answer [1]
6 What is the pH of acid rain?
A <7
B =7
C >7
D >> 7
Your answer [1]
© Cambridge OCR 2026 Turn over
for more:
GCSE (9?1) Combined Science A
(Gateway Science)
J250/10 Chemistry (Higher Tier)
Time allowed: 1 hour 10 minutes
*
2 You must have:
6 ? a ruler (cm/mm)
9 H5 ? the Data Sheet for GCSE (9?1) Combined Science A
2 (Chemistry) (inside this document)
9 You can use:
3 ? a scientific or graphical calculator8
6 ? an HB pencil
9 * J 2 5 0 1 0 *
*
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 page 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 60.
? 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 16 pages.
ADVICE
? Read each question carefully before you start your answer.
© Cambridge OCR 2026 [601/8687/2] Cambridge OCR is an exempt Charity
DC (SL/TC) 364876/6 Turn over
for more:
, 2
Section A
You should spend a maximum of 20 minutes on this section.
Write your answer to each question in the box provided.
1 Which element is a grey solid at room temperature?
A Fluorine
B Chlorine
C Bromine
D Iodine
Your answer [1]
2 The table shows the time taken for four metals to completely react with water.
The mass and surface area of the metals are the same.
Which metal is most reactive?
Metal Time (s)
A 1
B 7
C 15
D 23
Your answer [1]
3 What is not a main stage of a life-cycle assessment?
A Cost
B Disposal
C Manufacture
D Transportation
Your answer [1]
© Cambridge OCR 2026
for more:
, 3
4 Which process is used to separate the fractions in crude oil?
A Chromatography
B Filtration
C Fractional distillation
D Simple distillation
Your answer [1]
5 Large hydrocarbon molecules are cracked to make smaller, more useful products.
Decane, C10H22 is cracked to make octane, C8H18 and one other product.
What is the formula of the other product?
A CH4
B C2H2
C C2H4
D C4H2
Your answer [1]
6 What is the pH of acid rain?
A <7
B =7
C >7
D >> 7
Your answer [1]
© Cambridge OCR 2026 Turn over
for more:
