Physical Science Multiple Choice Quiz Worksheet Page 3
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163
9.
The order of reactivity for some metals from the most reactive to the least
reactive is given by:
most reactive
least reactive
calcium, magnesium, aluminium, zinc, iron, lead, copper, silver
The suitable methods for extraction of aluminium from bauxite and copper from
pyrite are
aluminium from bauxite
copper from pyrite
A
electrolysis of aqueous solution
roasting
B
electrolysis of molten ore
roasting with coke
C
roasting
electrolysis of aqueous solution
D
roasting with coke
electrolysis of molten ore
[1]
10. Which diagram shows the particle arrangement in an electrical conductor?
[1]
A
B
C
D
11. Which type of steel is used to manufacture kitchen sinks?
A
cobalt steel
B
hard steel
C
mild steel
D
stainless steel
[1]
12. Which substance has the properties of a ceramic material?
Substance melting point/ electrical conductivity
electrical conductivity
°C
in solid
in liquid
A
-95
poor
poor
B
327
good
good
C
808
poor
poor
[1]
D
1650
poor
good
JSC 2007, Physical Science
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