Classify the following into good conductors, resistors and insulators:
Rubber, Mercury, Nichrome, Polythene, Aluminium, Wood, Manganin, Bakelite, Iron, Paper, Thermocol, Metal coin
Good conductors:
Mercury, Aluminum, Iron, Metal coin
Resistors:
Manganin, Nichrome
Insulators:
Rubber, Polythene, Wood, Bakelite, Paper, Thermocol
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- State one use of each of the following metals:Copper, Aluminium, Iron, Silver, Gold, Mercury
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- (a) What are metalloids? Name two metalloids.(b) Classify the following elements into metals, nonmetals and metalloids:Copper, Sulphur, Aluminium, Oxygen, Silicon, Nitrogen, Germanium, Mercury, Chlorine, Sodium.
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- What are the differences between good conductors and bad conductors?
- Give one use each of the following metals:(a) Iron(b) Copper(c) Aluminium(d) Zinc(e) Mercury
- Which of the following are 'pure substances' ?Ice, Milk, Iron, Hydrochloric acid, Calcium oxide, Mercury, Brick, Wood, Air
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