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  4. Mercury is often used in clinical thermometers. Which one of the following properties of mercury is not a reason for this ?

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Q. Mercury is often used in clinical thermometers. Which one of the following properties of mercury is not a reason for this ?

KVPYKVPY 2016

Solution:

Fluid used in a thermometer must be easily visible, expands uniformly and significantly and it must be a liquid at room temperature. So, density of mercury is not a feature for selecting mercury in clinical thermometers.