With the increase of temperature, the viscosity of gases increases due to increase of their thermal velocity whereas, viscosity of liquids decreases with the increase of temperature. Water does not wet an oily glass because cohesive force between water molecules is less than adhesive force between the molecules of oil and glass. : A liquid will wet a surface of a solid if the angle of contact is acute (i.e less than 90∘ ). Hence, statement (A) is true and statement (B) and (C) are false.