Question

Water cannot be used as a liquid in a thermometer because it has:

• A. higher freezing point and lower boiling point than other thermometric liquids
• B. lower freezing point and higher boiling point than other thermometric liquids
• C. low specific heat capacity
• D. transparent colour

Answer 1

The correct option is A higher freezing point and lower boiling point than other thermometric liquids

Water cannot be used in thermometer because of its higher freezing point and lower boiling point than other liquids . If water is used in a thermometer , it will start phase change at $0^{o}C$ and ${100}^{o}C$ and will not measure temperature , out of this range . This range is very small as compared to other liquids as mercury , having freezing point about $-{39}^{o}C$ and boiling point ${356}^{o}C$ .