Question

Which of the following is true about an alcohol thermometer?

• A. It can measure high temperatures.
• B. Alcohol does not stick to the walls of the thermometer.
• C. It gives more accurate results at high temperatures.
• D. It gives more accurate results at low temperatures.
  

Answer 1

The correct option is D It gives more accurate results at low temperatures.


Alcohol is a liquid with a low boiling point, thus it is not suitable for measuring high temperatures. Its per degree expansion is not uniform at high temperatures.
It also sticks to the walls of the thermometer
It gives more accurate results at low temperatures because its per degree expansion is more as compared to mercury.
Hence, the statement "It gives more accurate results at low temperatures" is true regarding alcohol thermometer.