In barometer mercury is preferred over water because – McqOptions

MCQOPTIONS

1.	In barometer mercury is preferred over water because
A.	mercury has high density and low vapour pressure.
B.	mercury is a good conductor of heat.
C.	mercury is available in pure form.
D.	mercury is shining and its level can be seen easily.
Answer» B. mercury is a good conductor of heat.

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