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Which of the following metals is a poor conductor of heat?
- (a)$\ce{Na}$
- (b)$\ce{Pb}$
- (c)$\ce{Cu}$
- (d)$\ce{Al}$
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(B) Pb
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CBSE Class 10 Science PYQ · Metals and Non-metals · Physical properties of metals and non-metals · 1 Mark · May 2026
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