Which among the following metals is liquid at room temperature?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Mercury
Mercury is the only metal that is liquid at room temperature: it melts at about −39°C and boils at about 357°C. Being a liquid that expands evenly when heated, it was long used in thermometers and barometers. (Bromine, the other element liquid at room temperature, is a non-metal.)