Match List-I with List-II
List-I (Physical parameter)

(A) Surface tension

(B) Viscosity

(C) Soil permeability

(D) Particle density

(E) Soil water potential

List-II (Unit)

(I) Kilogram per cubic meter

(II) Newton per meter

(III) Meter per hour

(IV) Pascal

(V) Pascal-second

Choose the correct answer from the options given below:

Correct option is C

Explanation of the Correct Option (c): (A)-(II), (B)-(V), (C)-(III), (D)-(I), (E)-(IV)
(A) Surface tension → (II) Newton per meter
· Surface tension is a force per unit length acting at the liquid surface.
· SI unit: N m⁻¹ (Newton per meter).
(B) Viscosity → (V) Pascal-second
· Viscosity measures resistance to flow.
· SI unit: Pa·s (Pascal-second).
(C) Soil permeability → (III) Meter per hour
· Indicates the rate of water movement through soil pores.
· Commonly expressed as m h⁻¹.
(D) Particle density → (I) Kilogram per cubic meter
· Mass per unit volume of soil solids.
· SI unit: kg m⁻³.
(E) Soil water potential → (IV) Pascal
· Represents the energy status of water in soil.
· Expressed in pressure units → Pascal (Pa).
Explanation of Other Options
Option (a)
· Incorrect because:
· Surface tension is not measured in Pascal.
· Particle density is not expressed in Newton per meter.
Option (b)
· Incorrect because:
· Viscosity is not measured in Pascal.
· Soil permeability is not expressed in kg m⁻³.
Option (d)
· Incorrect because:
· Surface tension is not expressed in kg m⁻³.
· Soil water potential is not measured in Pascal-second.
Key Points Related to the Question
· Surface tension → N/m
· Viscosity → Pa·s
· Soil permeability → m/h
· Particle density → kg/m³
· Soil water potential → Pa