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This question is about metals - AQA - GCSE Chemistry - Question 4 - 2015 - Paper 1
Question 4
This question is about metals. Figure 4 shows the metals used to make pylons and the wires of overhead cables. Figure 5 Stage 1 mined ore Stage 2 separated metal... show full transcript
Worked Solution & Example Answer:This question is about metals - AQA - GCSE Chemistry - Question 4 - 2015 - Paper 1
Step 1
Explain why Stage 2 needs to be done.
Answer
Stage 2 is necessary because the ore often contains impurities or other compounds that need to be removed to ensure a pure metal compound is obtained. This step ensures the separation of the metal from unwanted materials, allowing for a more effective extraction process.
Step 2
Step 3
Describe how cast iron is converted into steel. Use Figure 6 to help you answer this question.
Answer
In the conversion of cast iron into steel, oxygen is introduced into the furnace containing cast iron. The oxygen reacts with the carbon present in the cast iron, reducing its percentage. As a result, carbon dioxide is produced as a waste gas, and the remaining metal is transformed into steel.
Step 4
Step 5
How can you tell that copper is a transition metal and aluminium is not a transition metal from the position of each metal in the periodic table?
Answer
Copper is located in the central block of the periodic table, specifically in Group 3, indicating it is a transition metal. In contrast, aluminium is positioned outside this block, confirming it is not classified as a transition metal.
Step 6