Which metal is a poor conductor of heat?

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Lead

Gold

Zinc

None of the above

answer is A.

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Detailed Solution

Concept- Properties of metalsUsually metals are excellent conductors of heat. In metals their respective atoms form a sea of electrons .
which surrounds the positively charged atomic nuclei of the interacting metal ions and these are called kernels. Lead is a poor conductor of heat because it is soft and malleable and has a relatively low melting point. It is also because Lead reacts with air easily to form Lead Oxide and we know that oxides of metals do not conduct heat easily.
Hence, the correct option is 1.

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