One Torr is equivalent to how many mm of Mercury?

Correct answer: A. 1 mm

  • A. 1 mm
  • B. 10 mm
  • C. 100 mm
  • D. 0.1 mm

Explanation

A torr is defined as one millimetre of mercury, so 1 torr equals 1 mmHg. It is a unit of pressure, not a length measurement in ordinary use.

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