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Materials : Metals And Non-Metals
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Carbon can be drawn into wires.
Some properties are listed in the following table. Distinguish between metals and non-metals on the basis of their properties.
|
Properties |
Metals |
Non-metals |
|
1. Appearance 2. Hardness 3. Malleability 4. Ductility 5. Heat Conduction 6. Conduction of Electricity |
Give reasons for the following :
Aluminium foils are used to wrap food items.
Give reasons for the following :
Immersion rods are made up of metallic substances.
Give reasons for the following :
Copper cannot displace zinc from its salt solution.
Give reasons for the following :
Sodium and Potassium are stored in kerosene?
Can you store acidic lemon pickles in an aluminium utensils? Explain.
Match the following option:
What happens when :
Dilute sulphuric acid is poured on a copper plate?
What happens when :
Iron nails are placed in copper sulphate solution?
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