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What Is Temperature

Which of thes...

Question

Which of these is the best insulator of heat?

(a) iron
(b) water
(c) nitrogen
(d) alcohol

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Solution

(c) nitrogen
Gases are bad conductors to heat, and nitrogen being a gas can be considered as the best insulator. Water and alcohol are liquids, and are semi-good insulators. However, iron is a solid and the best conductor to heat.

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Q. Which of these is the best insulator of heat?

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