Single correct option
Which of the following metals is a liquid at room temperature (about 25 °C)?
- A. Mercury
- B. Sodium
- C. Lead
- D. Zinc
Show answer and solution
Answer: (A) Mercury
Mercury melts at about -39 °C, so it is the only common metal liquid at room temperature. Sodium melts at about 98 °C, lead at about 327 °C and zinc at about 420 °C, so all three are solids at 25 °C even though sodium is soft.
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