Question

6. Give reasons for the following -
a) Graphite rods are used in batteries.
) Gold is used for high precision contacts in computers.
:) Aluminium is used for making foil for packing medicines.​

Answer 1

Answer:

graphite rods are used in batteries mean

Answer 2

Answer:1st answer : Graphite rods are used as electrodes in electrolysis because graphite's structure enables it to be an excellent conductor.

2nd answer : Gold is the highly efficient conductor that can carry these tiny currents and remain free of corrosion. Electronic components made with gold are highly reliɑble.

3rd answer : Aluminum foil provides a complete barrier to light, oxygen, moisture and bacteria. . For this reason, foil is used extensively in food and pharmaceutical packaging.

Explanation: