The newest 8 of 8 written questions. Open one to see it on the real paper.
Describe the reaction of copper with dilute hydrochloric acid.
See it on the paper →Aluminium is used to make aircraft. Identify from the list below one property of aluminium that makes it suitable for this purpose. good conductor of electricity good thermal conductor low density low melting point
See it on the paper →Aluminium is used to make food containers because it is resistant to corrosion. Explain why aluminium is resistant to corrosion.
See it on the paper →A scientist suggests that the meteorite contains metallic iron. Suggest a simple way for the scientist to test for iron in an object found on Earth.
See it on the paper →Potassium is a very reactive metal. Potassium is stored under oil as shown in Fig. 5.1. oil potassium pieces of potassium Fig. 5.1 Suggest two reasons why potassium is stored under oil.
See it on the paper →Lead is a metal. Suggest one test to show that lead is a metal.
See it on the paper →Magnesium and magnesium oxide both react with aqueous hydrochloric acid. Describe one difference and one similarity in the observations made. difference similarity
See it on the paper →Comprehensive responses • Most candidates used the information shown on the diagram to determine that there was no reaction between copper and dilute sulfuric acid. Limited responses • A few candidates did not make the connection between an absence of bubbles and no reaction.
— Examiner report, February/March 2026, 0654/32 Q6(d)(i) (Cambridge)
The majority of candidates chose the correct response. A small number thought the answer should be ‘good thermal conductor’. Perhaps not relating the idea of low density to use in aircraft.
— Examiner report, October/November 2023, 0654/43 Q2(a) (Cambridge)
Many suggested aluminium was unreactive and so did not corrode. Others mentioned the formation of an oxide layer but did not indicate this layer adhered to the metal protecting it from further corrosion, even so there were many fully correct responses.
— Examiner report, October/November 2023, 0654/43 Q2(b) (Cambridge)
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One of the products made in both reactions in (c)(i) is the same. State the name of this product.