Which element is a liquid at room temperature and is used in thermometers?
A
Bromine
B
Gallium
C
Mercury
D
Caesium
Correct Answer: Option C — Mercury
Explanation:
Mercury is a metal that remains liquid at room temperature with a melting point of minus 38.8 degrees Celsius and has been traditionally use...
Mercury is a metal that remains liquid at room temperature with a melting point of minus 38.8 degrees Celsius and has been traditionally used in thermometers and barometers.