An aqueous solution of calcium hydroxide is electrolysed using carbon electrodes.
1) what will be liberated at the anode?
2) it was observed that during the electrolysis, the mass of the anode decreased and a white precipitate was formed. explain.
: )

In the anode, the oxygen in the hydroxide ion will be oxidized produced oxygen gas. This gas will be liberated in the anode.
The mass of the anode will decrease because the Carbon in the electron reacts with Calcium to form Calcium carbonate which is the white precipitate.

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