(a) State five characteristics of metals and five characteristics of nonmetals.
(b) State five uses of metals and five uses of non-metals.

1. Metals are good conductors of heat and electricity.
2. Metals are highly malleable and ductile.
3. They have very high melting and boiling points.
4. Metal oxides are basic in nature.
5. Metals displace hydrogen from dilute acids.

1. Nonmetals are not malleable and ductile but they are brittle.
2. They are bad conductors of heat and electricity.
3. They have low melting and boiling points and are soft.
4. They form acidic or neutral oxides when they react with oxygen.
5. Nonmetals do not displace hydrogen with dilute acids.

(b) Uses of metals:

1. Metals are ductile and can drawn into wires.
2. Metals are malleable.
3. Mercury is used in thermometers.
4. Gold and silver are used to make jewelry.
5. Copper is used to make wires and utensil.

Uses of non-metals

1.  Hydrogen is used to manufacture ammonia.
2. Hydrogen is used as rocket fuel.
3. Graphite is used to make electrodes.
4. Nitrogen is used to preserve food as it is inert.
5. Sulphur used to vulcanise rubber

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Updated on: 10-Oct-2022

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