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Materials : Metals And Non-Metals

Question

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Non-metals do not react with water. How does this fact is utilized to store very reactive non-metals?

Solution

Non-metals do not react with water. This quality is quite helpful in protecting some highly reactive non-metals which quickly react in air. White phosphorus is very reactive non-metal. It immediately catches fire when exposed to air. To prevent this, it is stored in water.

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

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.

Match the following option:

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