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Materials : Metals And Non-Metals

Question

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Give reasons for the following :

Aluminium foils are used to wrap food items.

Solution

Aluminium foils are used to wrap food items because aluminium is highly malleable and can be beaten into sheets to form these thin wrapping sheets and it is soft and it does not react with food items.

Some More Questions From Materials : Metals And Non-Metals Chapter

Which of the following statements is correct?

Phosphorus is very ________ non-metal.

Metals are _ conductor of heat and __.

Iron is ________ reactive than copper.

Metals react with acids to produce ________ gas.

Generally, non-metals react with acids.

Sodium is a very reactive metal.

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

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