Mercury is generally used in thermometers because it has ........

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Mercury is generally used in thermometers because it has

high fluidity

high density

high thermal conductivity

high specific heat

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Explanation:

Most metals are good conductors of heat and they are solids at room temperature. Mercury is the only one in liquid state at room temperature.
Thermal conductivity is the propensity for any material to transfer heat from one point to another. Coefficient of expansion is the rate at which a material will grow in length with an increase in temperature.
Mercury is used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer.

By: Abhipedia

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Aarushi

CAN BE ALL OF THEM

Abhinandan

Sir this question seems a bit flawed. Mercury is used in thermometer due to its "High coefficient of expansion" but that option is not available. Kindly look into it and give a clarification. (abhinandan13.96@gmail.com)

Dr.Ankush Sharma

Actually main reason for it is 1) high thermal expansion(bcs of this we can notice small changes ) 2) does not wet glss 3) high reflective surface Conductivity of water is also high but to construct thermometer of water we need more than 34ft vessel Therefore density plays important role here ..please recheck and revert