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The lubricating action of an oil is more...

The lubricating action of an oil is more if it possess:

A

(a) High vapour pressure

B

(b) Low vapour pressure

C

( c) High surface tension

D

(d) High density

Text Solution

Verified by Experts

The correct Answer is:
B
Substances of high vapour pressure (e.g., gasoline) evaporates more quickly than substance of low vapour pressure (e.g., motor oil).
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