Choose the option which is not a property of metal: i) Metal is a good conductor of heat. ii) Except for mercury all the other metals are in liquid state. iii) Metals form cations in aqueous solution. iv) The oxides of metals are basic in nature.

ii) Except for mercury all the other metals are in liquid state. This is the correct option because mercury exist in liquid state and all other metals exist in solid state.

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