Force in Column-I and its use in Column-II ar | vedclass

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(A) Cohesive force is the force of attraction between molecules of the same substance. This force is responsible for the surface tension of liquids,wh

Vedclass · Accepted Answer

$(a-iii), (b-i)$

Vedclass · Answer

(A) Cohesive force is the force of attraction between molecules of the same substance. This force is responsible for the surface tension of liquids,which causes liquid drops to take a spherical shape to minimize surface area. Thus,$(a)$ matches with $(iii)$.Adhesive force is the force of attraction between molecules of different substances. When writing with chalk on a blackboard,the chalk particles stick to the board due to adhesive forces. Thus,$(b)$ matches with $(i)$.Therefore,the correct matching is $(a-iii), (b-i)$.

Column-$I$	Column-$II$
$(a)$ 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.

Force in Column-$I$ and its use in Column-$II$ are given. Match them appropriately.
Column-$I$ Column-$II$
$(a)$ 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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Force in Column-$I$ and its use in Column-$II$ are given. Match them appropriately.Column-$I$Column-$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.