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2.2 How bonding and structure are related to the properties of substances

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Question 40
H

The table gives the hardness and the melting point of a pure metal and of two alloys made from that metal. Which conclusion is supported by the data in the table?

Table: The hardness and the melting point of a pure metal and of two alloys made from that metal

MaterialHardness in arbitrary unitsMelting point in ∘C^\circ\text{C}∘C
Pure metal351085
Alloy A951010
Alloy B140950
[1]
A

Both alloys are harder than the pure metal they are made from

B

Both alloys are softer than the pure metal they are made from

C

Both alloys melt at a higher temperature than the pure metal

D

The harder of the two alloys has the higher melting point

Markscheme

2.2 How bonding and structure are related to the properties of substances Questions

  1. GCSE
  2. /Chemistry
  3. /2.2 How bonding and structure are related to the properties of substances

84 exam-style questions on AQA GCSE Chemistry 2.2 How bonding and structure are related to the properties of substances, covering 2.2.1a The three states of matter, 2.2.1b Limitations of the simple particle model, 2.2.2 State symbols in chemical equations, 2.2.3 Properties of ionic compounds, 2.2.4 Properties of small molecules, 2.2.5 Polymers, 2.2.6 Giant covalent structures, 2.2.7 Properties of metals and alloys, and 2.2.8 Metals as conductors. Each one has a worked solution and a mark scheme showing where the marks go.

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