Which of the following is a property of fluid which makes it suitable to be used in manometers?

Explanation:

Some of the important and desirable properties of the manometric liquids are:

(i) High chemical stability

(ii) Low viscosity

(iii) Low capillary constant

(iv) Low coefficient of thermal expansion

(v) Low volatility

(vi) Low vapour pressure

For amplifying the deflection in a liquid column manometer, liquids with lower density could be used or one of the limbs of the manometer may be inclined.

Commonly used manometric liquids are mercury, water or alcohol. Water and alcohol are used for measure low pressures while mercury is used for higher pressures.