Force in Column - $\mathrm{I}$ and its use is in Column - $\mathrm{II}$ are given. Match them appropriately.
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.
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$(a-iii),(b-i)$
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