Subsection 9.6. Extraction of metals for Chemistry, O Level - revisedeck

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9.6. Extraction of metals

A subsection of Chemistry, 5070, through 9. Metals

Listing 10 of 97 questions

Which process does not involve the use of a catalyst?

5070_s16_qp_11

MCQ

2016

Paper 1, Variant 1

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Which metal oxide will be reduced by heating with iron?

5070_s16_qp_11

MCQ

2016

Paper 1, Variant 1

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Which process does not involve the use of a catalyst?

5070_s16_qp_12

MCQ

2016

Paper 1, Variant 2

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Which oxide can be reduced to the metal by roasting with powdered iron?

5070_s16_qp_12

MCQ

2016

Paper 1, Variant 2

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Aluminium is extracted from aluminium oxide by electrolysis. waste gases carbon cathode (-ve) carbon anodes (+ve) purified aluminium oxide dissolved in molten cryolite molten aluminium Which statement about this electrolysis is correct?

5070_s16_qp_12

MCQ

2016

Paper 1, Variant 2

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The equations show reactions taking place in the blast furnace. In which reaction is an acidic impurity, present in iron ore, removed?

5070_s20_qp_11

MCQ

2020

Paper 1, Variant 1

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Which equation shows a thermal decomposition that occurs in the blast furnace?

5070_s20_qp_12

MCQ

2020

Paper 1, Variant 2

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Which reactions take place during the extraction of aluminium from aluminium oxide using carbon electrodes?

5070_s21_qp_11

MCQ

2021

Paper 1, Variant 1

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How many tonnes of aluminium oxide, Al 2O3, are required to produce 27 tonnes of aluminium?

5070_s22_qp_11

MCQ

2022

Paper 1, Variant 1

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Some types of chemical reaction are listed. acid-base combustion redox Which types of reaction occur in a blast furnace during the extraction of iron?

5070_s22_qp_11

MCQ

2022

Paper 1, Variant 1

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Questions Discovered

97