The properties of a surface are different from those of the bulk liquid because the surface molecules
(a) are smaller than other molecules
(b) acquire charge due to collision from air molecules
(c) find different type of molecules in their range of influence
(d) feel a net force in one direction.

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Solution

Correct option: (c) & (d)

(c) The surface molecules acquire air and liquid molecules in their sphere of influence.
(d) The surface molecules have different magnitudes of forces pulling them from the top and the bulk. So, they are affected by a net finite force in one direction.

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Similar questions

Q. The properties of a surface are different from those of the bulk liquid because the surface molecules:

Q. The molecule at the surface of the liquid feels the net force in the________ direction.

A_{1}, A_{2}

-identical molecules
B,C-different molecules

D_{1}, D_{2}

-molecules on a liquid surface
Forces between each pair are:

Question 23
If two liquids A and B form minimum boiling azeotrope at some specific composition then
(a) A-B interactions are stronger than those between A-A or B-B
(b) vapour pressure of solution increases because more number of molecules of liquids A and B can escape from the solution
(c) vapour pressure of solution decreases because less number of molecules of only one of the liquids escape from the solution
(d) A-B interactions are weaker than those between A-A or B-B

State True or False.

A gas differs from a liquid in that, except during collisions, the molecules of gas are widely separated from each other and move in paths that are largely unaffected by intermolecular force.

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The properties of a surface are different from those of the bulk liquid because the surface molecules (a) are smaller than other molecules (b) acquire charge due to collision from air molecules (c) find different type of molecules in their range of influence (d) feel a net force in one direction.

Correct option: (c) & (d) (c) The surface molecules acquire air and liquid molecules in their sphere of influence. (d) The surface molecules have different magnitudes of forces pulling them from the top and the bulk. So, they are affected by a net finite force in one direction.

The properties of a surface are different from those of the bulk liquid because the surface molecules
(a) are smaller than other molecules
(b) acquire charge due to collision from air molecules
(c) find different type of molecules in their range of influence
(d) feel a net force in one direction.

Correct option: (c) & (d)

(c) The surface molecules acquire air and liquid molecules in their sphere of influence.
(d) The surface molecules have different magnitudes of forces pulling them from the top and the bulk. So, they are affected by a net finite force in one direction.