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Question

Statement1: Level of mercury should be along the line of sight to avoid parallax error
Statement 2: Mercury is a toxic substance.

A

Statement 2 is correct but statement 1 is incorrect

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B
Both statements are correct
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C
Both statements are incorrect
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D

Statement 1 is correct but statement 2 is incorrect

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Solution

The correct option is B Both statements are correct
Precautions to take when using a thermometer:
To avoid parallax error, the mercury level should be along the sight. If we make a parallax error, the reading will invariably be wrong.
Mercury is a highly poisonous chemical. It is not recommended that humans inhale it. It has the potential to harm or even kill the person who consumes it.

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