Metal extraction

1. 1Why is titanium not extracted from its ore by electrolysis?

   1. AIt is impossible as titanium is too reactive
   2. BIt is too expensive
   3. CThe titanium produced would not be pure enough
2. 2Which of the following is NOT added at the top of the blast furnace when extracting iron?

   1. AHaematite
   2. BHot air
   3. CCoke
   4. DLimestone
3. 3Which of the following is NOT a reason why the extraction of titanium is expensive?

   1. AIt is a batch process.
   2. BHigh temperatures are needed.
   3. CHigh pressures are needed.
   4. DThe reducing agents are active metals which must be extracted by electrolysis.
4. 4Which method is used for the extraction of aluminium from bauxite?

   1. AElectrolysis
   2. BReduction by carbon
   3. CReduction by hydrogen
   4. DReduction by another metal
5. 5Which method is used in the extraction of copper from malachite?

   1. AElectrolysis
   2. BReduction by carbon
   3. CReduction by hydrogen
   4. DReduction by another metal
6. 6Which of the following is NOT an environmental pollutant associated with the extraction of metals?

   1. ACarbon dioxide
   2. BCarbon monoxide
   3. CSulphur dioxide
   4. DNitrogen dioxide
7. 7Which method is used for the extraction of titanium from rutile?

   1. AElectrolysis
   2. BReduction by carbon
   3. CReduction by hydrogen
   4. DReduction by another metal
8. 8Which method is used in the extraction of tungsten from wolframite?

   1. AElectrolysis
   2. BReduction by carbon
   3. CReduction by hydrogen
   4. DReduction by another metal
9. 9Which method is used in the extraction of iron from haematite?

   1. AElectrolysis
   2. BReduction by carbon
   3. CReduction by hydrogen
   4. DReduction by another metal
10. 10In the electrolysis of bauxite, why must the anode be constantly replaced?

    1. AThe build-up of aluminium reduces its efficiency
    2. BThe formation of oxygen causes carbon to burn
    3. CThe constant flow of electricity wears it down
    4. DIt gets dirty

11. 11Which of the following metals is NOT extracted from its ore by reduction with carbon?

    1. AManganese
    2. BTungsten
    3. CIron
    4. DCopper

Descripción

A-Level (Metals) Chemistry Test sobre Metal extraction, creado por Stephen Cole el 08/05/2014.

Autor

Stephen Cole

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English

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