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What happens when :
Iron nails are placed in copper sulphate solution?
Iron is more reactive than copper, therefore when it place in copper sulphate solution, iron replace copper from its salt solution and iron sulphate solution is formed.
Iron +copper sulphate→ Iron sulphate +copper
(blue colour solution) (green colour solution)
Copper displaces zinc from zinc sulphate solution.
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?
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