Metals are extracted from rocks found in the Earth’s crust. Complete the sentence by putting a cross (X) in the box next to your answer. Rocks from which metals are extracted are called A alloys B elements C ores D polymers (b) Copper is used as the wire in electric cables. State two reasons why copper is used as wire in electric cables.

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Metals are extracted from rocks found in the Earth’s crust - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1

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Metals are extracted from rocks found in the Earth’s crust. Complete the sentence by putting a cross (X) in the box next to your answer. Rocks from which metals ar... show full transcript

Worked Solution & Example Answer:Metals are extracted from rocks found in the Earth’s crust - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1

Step 1

Complete the sentence: Rocks from which metals are extracted are called

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C. Ores. Ores are naturally occurring solid materials from which a metal or valuable mineral can be extracted.

Step 2

State two reasons why copper is used as the wire in electric cables.

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Answer

Copper has excellent electrical conductivity, allowing efficient transmission of electrical current.
Copper is malleable and ductile, meaning it can be easily shaped and drawn into wires without breaking.

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Metals are extracted from rocks found in the Earth’s crust - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1

Worked Solution & Example Answer:Metals are extracted from rocks found in the Earth’s crust - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1

Complete the sentence: Rocks from which metals are extracted are called

State two reasons why copper is used as the wire in electric cables.

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