Which of the following is NOT true about mercury as a thermometric liquid?
A. It does not wet glass B. It is opaque and easily seen C. It can be used for extra low temperature down to \(200^{\circ} \mathrm{C}\) D. It is a good conductor of heat and responds rapidly to changes in temperature
Correct Answer: C
Explanation
A thermometer that uses mercury as a thermometric liquid cannot be used to measure temperature values as low as \(-200^{\circ} \mathrm{C}\) since the freezing point of mercury is about \(-39^{\circ} \mathrm{C}\)
