| Column - $\mathrm{I}$ | Column - $\mathrm{II}$ |
| $(a)$ Cohesive force | $(i)$ Useful for writing by chalk on blackboard. |
| $(b)$ Adhesive force | $(ii)$ Useful in soldering. |
| $(iii)$Useful for formation of spherical drops of liquid. |
(The bulk modulus of rubber $=9.8 \times 10^{8}\, {Nm}^{-2}$ Density of sea water $=10^{3} {kgm}^{-3}$
$\left.{g}=9.8\, {m} / {s}^{2}\right)$

