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The commonly used thermometric substance is ________.

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The commonly used thermometric substance is ________.
1). Mineral oil
2). Alcohol
3). Mercury
4). Petrol


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Answered by on | Votes 3 |
  • Mercury is the only one in liquid state at room temperature.
  • It is used in thermometers because it has high co-efficient of expansion.
  • Hence, the slightest change in temperature is notable when it's used in a thermometer.

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