Write SI units of each physical quantity

We match each item in List I with its SI unit in List II.

A. Surface tension

Surface tension is defined as force per unit length. $T = \frac{F}{l}$

SI unit of force is: $[F] = \mathrm{kg\, m\, s^{-2}}$

Therefore, $[T] = \frac{\mathrm{kg\, m\, s^{-2}}}{\mathrm{m}} = \mathrm{kg\, s^{-2}}$

So, $A \to IV$

B. Pressure

Pressure is force per unit area. $P = \frac{F}{A}$

Hence, $[P] = \frac{\mathrm{kg\, m\, s^{-2}}}{\mathrm{m^2}} = \mathrm{kg\, m^{-1}\, s^{-2}}$

So, $B \to III$

C. Viscosity

The SI unit of coefficient of viscosity is: $\mathrm{Pa\, s}$

Since, $1\,\mathrm{Pa} = 1\,\mathrm{kg\, m^{-1}\, s^{-2}}$

Therefore, $\mathrm{Pa\, s} = \mathrm{kg\, m^{-1}\, s^{-1}}$

So, $C \to I$

D. Impulse

Impulse = force $\times$ time = change in momentum. $J = F\Delta t$

Therefore, $[J] = (\mathrm{kg\, m\, s^{-2}})(\mathrm{s}) = \mathrm{kg\, m\, s^{-1}}$

So, $D \to II$

Final matching

$A-IV,\; B-III,\; C-I,\; D-II$

Compare with options

This corresponds to Option A.

Comparison with stored correct answer

Stored correct answer is A, which matches our derived answer.