Give an example of a metal which
(i) is a liquid at room temperature.
(ii) can be easily cut with a knife.
(iii) is the best conductor of heat.
(iv) is a poor conductor of heat.
(i) Mercury is a liquid at room temperature. (ii) Sodium, potassium can be easily cut with a knife. (iii) Silver and copper are good conductor of heat. (iv) Lead is a poor conductor of heat
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