You are given 2 electrodes, pure water, few drops of HCl, a battery and a key to do electrolysis of water. [5] a) Draw the necessary diagram and label: Anode, Cathode and Electrolyte
b) Give your observation and conclusion.
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Explanation:
Water is a covalent compound, hence pure water is a weak electrolyte and feebly ionised and thus bad conductor of electricity.
However, addition of a small amount of acid or alkali increases ionisation of water making at good conductor of electricity.
For example, To increase the conductivity of water a few drops of sulphuric acid is added. Being a strong acid it can ionize completely to release H+ ions. These H+ ions are responsible for the conduction of electricity.
hence, A answer
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