Use this Cambridge International O-Level Chemistry Paper 2 2024 marking scheme for checking answers, revision, and exam preparation in Zimbabwe.
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This is the Cambridge International O-Level Chemistry marking scheme for Paper 2 from 2024. It shows how marks are awarded, so you can mark your own answers. The paper code is 5070/2.
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SECTION A: [50 MARKS]
Answer all the questions in the spaces provided
A1 (a) A learner with very long hair was wearing high-heeled shoes. Give two risks she might be exposed to while conducting experiments in the laboratory.
1. The hair dipping into solutions. [1]
2. Slipping and failing in the laboratory. [1]
(b) Matter can change from one state to another depending on the conditions and substance, as shown in the diagram. $\mathrm{A}, \mathrm{B}$, and C represent different states of matter.
(i) Which state of matter is represented by the letter C ?
Liquid [1]
(ii) What name is given to the change of state represented by letter Y ?
Deposition [1]
(iii) Give an example of a substance that can undergo the change you stated in (b)(ii).
Carbon dioxide / lodine / Ammonium chloride [1]
(iv) Describe what must be done in order to convert C to A .
Lower the temperature / cooling / Freezing [1]
[Total:
6 marks]
Chemistry
5070/2
2
2
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