1. Unreactive metals are found as uncombined metals in the Earth’s crust - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1
Question 1
1. Unreactive metals are found as uncombined metals in the Earth’s crust.
Which of the following metals is found uncombined in the Earth’s?
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Worked Solution & Example Answer:1. Unreactive metals are found as uncombined metals in the Earth’s crust - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1
Step 1
Put a cross (X) in the box next to your answer.
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Answer
The uncombined metal from the options provided is A gold. Gold is known for its unreactive nature, which allows it to be found in its native state.
Step 2
Complete the word equation for the reaction.
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Answer
The complete word equation is:
iron oxide + carbon → carbon dioxide + iron
Step 3
State what is meant by reduced.
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Answer
In this context, reduced means that the iron oxide loses oxygen. This process converts the iron oxide into iron, demonstrating a reduction in oxidation state.
