Alloys and their properties — Paper 2 · IGCSE Sciences - Co-ordinated (Double) 0654

23 Zinc is mixed with molten element X. A new material, Y, is made. Y conducts electricity. Which type of substance is Y? A alloy B covalent compound C macromolecule D ionic compound

1 marks

Answer: A

This question in 0654/22 Oct/Nov 2019

22 Which diagram represents an alloy? A B C D

1 marks

Answer: A

This question in 0654/21 May/June 2020

22 Which metal is mixed with copper to make brass? A aluminium B iron C magnesium D zinc

1 marks

Answer: D

This question in 0654/22 May/June 2020

21 Why does the steel used to make a drill contain manganese? A to increase the density of the steel B to increase the hardness of the steel C to increase the malleability of the steel D to increase the melting point of the steel

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2021

22 Why does the steel used to make a drill contain manganese? A to increase the density of the steel B to increase the hardness of the steel C to increase the malleability of the steel D to increase the melting point of the steel

1 marks

Answer: B

This question in 0654/22 Oct/Nov 2021

22 Why does the steel used to make a drill contain manganese? A to increase the density of the steel B to increase the hardness of the steel C to increase the malleability of the steel D to increase the melting point of the steel

1 marks

Answer: B

This question in 0654/23 Oct/Nov 2021

22 Duralumin and magnalium are alloys used in the manufacture of aircraft. They both contain aluminium and another metallic element. The alloys are made up of ……1…… of each element. They are used because they are ……2…… than the pure metals. Which words complete gaps 1 and 2? 1 2 A atoms harder B atoms softer C molecules harder D molecules softer

1 marks

Answer: A

This question in 0654/22 Feb/March 2022

23 Alloys are formed by dissolving one metal in another. Alloys are ……1…… . ……2…… alloys conduct electricity. Which words complete gaps 1 and 2? 1 2 A compounds All B compounds Some C mixtures All D mixtures Some

1 marks

Answer: C

This question in 0654/21 Oct/Nov 2022

23 Alloys are formed by dissolving one metal in another. Alloys are ……1…… . ……2…… alloys conduct electricity. Which words complete gaps 1 and 2? 1 2 A compounds All B compounds Some C mixtures All D mixtures Some

1 marks

Answer: C

This question in 0654/22 Oct/Nov 2022

23 Alloys are formed by dissolving one metal in another. Alloys are ««1«« . ««2«« alloys conduct electricity. Which words complete gaps 1 and 2? 1 2 A compounds All B compounds Some C mixtures All D mixtures Some

1 marks

Answer: C

This question in 0654/23 Oct/Nov 2022

25 Which diagram represents the structure of an alloy? A B C D + – + – + – + – + – + – + – +

1 marks

Answer: A

This question in 0654/21 May/June 2025

20 What is brass? A a mixture of a compound of copper and a compound of zinc B a compound of copper and zinc C a mixture of copper and a compound of zinc D a mixture of copper and zinc

1 marks

Answer: D

This question in 0654/23 Oct/Nov 2025