A) Zero
B) equal to\[{{45}^{o}}\]
C) equal to\[{{90}^{o}}\]
D) greater than\[{{90}^{o}}\]
Correct Answer: D
Solution :
A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than\[{{90}^{o}}\]. In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid.
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