BPSC (Bihar PCS) 2020 · Question 19 of 150

The poorest conductor of heat among the following is

Miscellaneous

Acopper
BleadCorrect
Cmercury
Dzinc
ENone of the above / More than one of the above 21. The vitamin which is effective in blood clotting is a. vitamin A b. vitamin B c. vitamin D d. vitamin K e. None of the above / More than one of the above

Answer: B. lead

Explanation

Understanding Thermal Conductivity in Metals The question asks to identify the poorest conductor of heat from the given list: copper, lead, mercury, and zinc. Thermal conductivity is a fundamental property that describes how well a material can transfer heat energy. A material with low thermal condu

Source: prepp.in

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