Question

In a thermometer, the commonly used liquid is___________.

Answer 1

Explanation:

1. In a thermometer, the commonly used liquid is mercury.
2. Because of the high thermal coefficient of expansion of mercury, it is used in thermometers.
3. Mercury expands more uniformly over a wide range of temperatures.
4. It also has a high boiling point, making it ideal for determining higher temperatures.

Hence, in a thermometer, the commonly used liquid is mercury.