Question

Give reasons for the following:

(a) Silver is used in making mirrors.
(b) Aluminium is used to make electrical wires.
(c) Food stuff should not be stored in aluminium utensils.
(d) Iron is used in constructing bridges and houses.

Answer 1

(a) Silver is used in making mirrors because silver has a high reflecting power.
(b) Aluminium is used to make electrical wires because aluminium is a good conductor of electricity.
(c) Food stuff should not be stored in aluminium utensils because acids of the food stuffs react with aluminium.
(d) Iron is used in constructing bridges and houses because iron is hard, strong, and rigid metal.