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Materials : Metals And Non-Metals

Question

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Name any two metals which does not react with oxygen even at high temperature.

Solution

Silver and gold does not react with oxygen even at higher temperature.

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

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

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.

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