Give reasons for the following :

1. Silver is used in making mirrors.
2. Aluminium is used to make electrical wire.
3. Iron is used in the construction of bridges and houses.
4. Graphite is used as an electrode in the dry cell.
5. Iron sheets are galvanized before use.

1. Silver has the ability to reflect light, therefore, it is used for making mirrors.
2. Aluminium is a good conductor of electricity, so, it is used for making electrical wires.
3. Iron is a strong metal, therefore, it is mixed with concrete to make bridges and houses.
4. Graphite is a good conductor of electricity, therefore, it is used as an electrode in a dry cell.
5. Iron sheets are galvanized before use so that they do not corrode. 

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Updated on: 17-Mar-2023

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