Mercury thermometer is commonly used for low temperature measurement. The freezing point and boiling point of mercury are respectively _____________ °C?
Correct answer: A. - 39 and 350
- A. - 39 and 350
- B. - 51 and 439
- C. - 79 and 395
- D. - 10 and 425
Explanation
Mercury freezes at about −38.8°C and boils at about 356.7°C, conventionally rounded here to −39°C and 350°C. This makes option a the closest listed pair.
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