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Among metals, which is the least efficient heat conductor.

Practice MCQ for SSC, UPSC, RRB Exams

A. Lead A.

B. Mercury B.

C. Calcium C.

D. Sodium D.

Correct Answer: A সঠিক উত্তর: A

Explanation ব্যাখ্যা

While other metals like mercury are also considered relatively poor heat conductors compared to good conductors like copper, lead generally has the lowest thermal conductivity among common metals.

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Among metals, which is the least efficient heat conductor.

Practice MCQ for SSC, UPSC, RRB Exams

Correct Answer: A সঠিক উত্তর: A

Explanation ব্যাখ্যা

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