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Question

Choose the odd one out and give reason for the choice.


A

Gold

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B

Cork

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C

Copper

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D

Mercury

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Solution

The correct option is B

Cork


The correct option is:

  1. Cork is basically made of bark (outer layer) of a cork oak tree. As a result, it is a bad conductor of heat, it does not allow passage of heat through it.
  2. Metals are good conductors of heat, as they allow the passage of heat through them. For example (mentioned in other options in question) Gold, Copper, Mercury and Iron etc.

Hence, the correct option is Option B. Cork.


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