Electricity through Liquids | Chemistry

Electrical conductivity is a measure of the ability of a substance to allow the flow of an electric current. Among solids metals and graphite are good conductors of electricity that have high electrical conductivity. Some liquids are also good conductors.
Liquids, on the other hand, conduct electricity by other means. Unlike in metals, the chemical bonding in liquids does not allow for electrons to move freely. This means we have to introduce charges into the water before it can start conducting.
Pure water or distilled water is a poor conductor of electricity. But the presence of even small amounts of impurities makes water a good conductor. Hence water from taps, wells, ponds, rivers, seas, lakes, etc. conducts electricity as they contain impurities. That is why we get an electrical shock when we touch the conducting parts of electrical appliances with wet hands. Our dry hands also have sweat on them which conducts electricity. So we should never touch the conducting parts of electrical devices.
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