give one advantage of using alcohol as the liquid in a thermometer as compared to using mercury.
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mercury may become harmful as it is a chemical whereas thermometer does not have any chemicals and metals at liquid form and works by giving approximate temperature
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Explanation:
Advantages of using alcohol over mercury as thermometric liquid are: i) Alcohol has greater value of temperature coefficient of expansion than mercury. ii) it's freezing point is below –100°C. Thus, alcohol thermometer is more sensitive than mercury thermometer and can be used to measure the temperature below –40°C.
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