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OCR MERGED QUESTION PAPER AND MARK SCHEME GCSE (9–1) Combined Science A(Gateway Science)J250/09 Chemistry (Higher Tier)FOR MAY 2024 $11.39   Add to cart

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OCR MERGED QUESTION PAPER AND MARK SCHEME GCSE (9–1) Combined Science A(Gateway Science)J250/09 Chemistry (Higher Tier)FOR MAY 2024

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OCR MERGED QUESTION PAPER AND MARK SCHEME GCSE (9–1) Combined Science A(Gateway Science)J250/09 Chemistry (Higher Tier)FOR MAY 2024

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  • October 16, 2024
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  • 2024/2025
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Friday 17 May 2024 – Morning
GCSE (9–1) Combined Science A
(Gateway Science)
J250/09 Chemistry (Higher Tier)
Time allowed: 1 hour 10 minutes

, 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 The diagram represents the particle model for a change in the arrangement of some particles.




Which row describes this change?

Type of change Explanation

A chemical The particles break up and then join together in a different way.

B chemical The particles stay the same but are arranged in a different way.

C physical The particles break up and then join together in a different way.

D physical The particles stay the same but are arranged in a different way.



Your answer [1]


2 Which element in the table is a non-metal?

Appearance at
Melting point (°C) Electrical conductivity
room temperature

A silver liquid –39 high

B orange-red solid 1083 high

C yellow solid 113 low

D silvery-white 3422 high



Your answer [1]




© OCR 2024

, 3
3 The graph shows how the temperature of two samples of a substance, Y and Z, changes as they
melt from solids to liquids.




Z

Temperature (°C)
Y




Time (minutes)

Which row describes Y and Z?

Y Z

A impure impure

B impure pure

C pure impure

D pure pure



Your answer [1]


4 This is the equation for the reaction between copper carbonate and dilute hydrochloric acid:

CuCO3(s) + 2HCl(aq) CuCl 2(…) + CO2(g) + H2O(l)

What is the state symbol for CuCl 2?

A aq

B g

C l

D s


Your answer [1]




© OCR 2024 Turn over

, 4
5 In which molecule is X an atom of carbon?

A X F B X
F F


C F D F

X F X F
F F
F

Your answer [1]


6 Boron, B, is in Group 3 of the Periodic Table and chlorine, Cl, is in Group 7 of the Periodic Table.

What is the formula of the compound formed when boron reacts with chlorine?

A BCl

B BCl3

C B3Cl

D B3Cl7


Your answer [1]




© OCR 2024

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