Year
10 A/ B Chemistry
I Mid-Term Examination 2015-2016
1. List the general physical
properties of metals
2. Describe the general chemical
properties of metals, e.g. reaction with dilute acids and reaction with oxygen
3. Explain in terms of their properties
why alloys are used instead of pure metals
4. Place in order of reactivity:
potassium, sodium, calcium, magnesium, zinc, iron, (hydrogen) and copper, by
reference to the reactions, if any, of the metals with:
• water or steam
• dilute hydrochloric acid and the reduction of
their oxides with carbon
5. Name the uses of aluminium:
• in the manufacture of aircraft because of its
strength and low density
• in food containers because of its resistance
to corrosion.
6. Deduce an order of reactivity from
a given set of experimental results
7. Describe the ease in obtaining
metals from their ores by relating the elements to the reactivity series
8. Describe and state the essential
reactions in the extraction of iron from hematite
9. Describe the conversion of iron
into steel using basic oxides and oxygen
10. Name the uses of mild steel (car
bodies and machinery) and stainless steel (chemical plant and cutlery)
11. Name the uses of copper related
to its properties (electrical wiring and in cooking utensils)
12. Discuss the advantages and
disadvantages of recycling metals, limited to iron/steel and aluminium
13. Describe the transition elements
as a collection of metals having high densities, high melting points and
forming coloured compounds, and which, as elements and compounds, often act as
catalysts.
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