Why is mercury widely used in clinical thermometers? (i) Mercury is ea – McqOptions

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1.	Why is mercury widely used in clinical thermometers? (i) Mercury is easily available in pure form. (ii) Mercury is opaque. (iii) Mercury has a constant coefficient of expansion.
A.	Only (i) and (ii)
B.	Only (ii) and (iii)
C.	Only (i) and (iii)
D.	(i), (ii) and (iii)
Answer» E.

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