Question

Q.no.1:-Write any five uses of Metals and non metals.

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Answer 1

Some non - metals and their uses are listed below -

★ Oxygen is used for breathing.

★ Chlorine is used for purifying water.

★ Phosphorous is used in crackers.

★ Non - metals like nitrogen is used in fertilizers.

★ Graphite is used as a good conductor of electricity.

★ Pottassium is used in fertilizers.

★ Nitrogen is used by plants.

★ Graphite is used in making leads.

★ Carbon is used as a fuel.

★ Bromine is used in dyes and pesticides

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Some metals and their uses are listed below -

★ Gold and silver are used for making jewellery.

★ Copper is used for making electrical wires, cooking utensils etc.

★ Zinc is mainly used as a protective coat for iron.

★ Aluminium is used for making electrical cables, packaging, cooking utensils,etc.

★ Metals like iron and steel are widely used in building and home constructions.

★ liquid metals like Mercury which can exists in room temperature is used in clinical thermometres.

★ lead is commonly used in car battries .

★ coins are made up of nickel.

★ sodium used as a table salt.

★ uranium are commonly used in defence fields as a nuclear reactor.

Answer 2

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★→Some uses of metals are as follows :

• Aluminium foils are used for packaging medicines, chocolates, decorating sweets, wrapping food, etc.
• Aluminium metal (in the form of alloys) is used to make aeroplanes.
• Iron, copper, and aluminium metals are used for making cooking utensils.
• Aluminium metal is used for making electric cables and over-head electric transmission lines.
• Mercury metal is used for making thermometers.

★→some uses of non-metals are as follows:

• Oxygen is a non-metal which is used by plants and animals for breathing. It is also used in the process of burning (or combustion) of fuels in our homes.
• Chlorine is a non-metal which is used in the purification of water.
• Iodine is a non-metalwhich is used for making a purple- coloured solution called tincture iodine which is used as an antiseptic on cuts and wounds.
• Sulphur and phosphorus are non-metals which are used in fireworks.
• Carbon is a non-metal which is used as a fuel.