Why is mercury used as a mark in a thermometer?

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It doesn’t stick to glass and is known as a good conductor of heat energy

It is silver in colour, easily visible from the outside of the glass and can be increased as the level of temperature increases

Both 1 and 2

None of the above

answer is C.

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Detailed Solution

Mercury is used as a mark in a thermometer because it doesn't stick to glass and is known as a good conductor of heat energy; it is silver in colour, easily visible from the outside of the glass and can be increased as the level of temperature increases.
Mercury is the best one in a liquid state at room temperature. Therefore, it's utilized in thermometers as it has an excessive expansion coefficient. Hence, the slightest temperature extrude is extremely good when utilized in a thermometer. It additionally has an excessive boiling factor, making it appropriate to degree better temperatures.

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