Question

Write 3 precautions to be taken while taking a reading from a laboratory thermometer
$pls \: answer \: and \: get \: 35 \: points$​

Answer 1

Answer:

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Explanation:

The reading should be taken by keeping the level of mercury along the line of sight.

Before use, the mercury level should be below 35°C.

Wash the thermometer with water or an antiseptic solution before and after use.

Never hold the thermometer by the bulb while reading it.

Handle the thermometer with care, it can break if hit against hard object.

Answer 2

Answer:

1. It should be kept upright not tilted.
2. Bulb should be surrounded from all sides by the substance of which the temperature is to be measured.
3. The bulb should not touch the surface of the container.