Statement-I: Hot water is less viscous than cold water. Statement-II: Surface tension of a soap bubble is more than that of a drop of water.
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Statement-I: Hot water is less viscous than cold water. Statement-II: Surface tension of a soap bubble is more than that of a drop of water.

G1 Physics · Accepted Answer

For liquids, viscosity decreases with rise in temperature, so Statement-I is true. Surface tension is a property of the liquid-air interface; the fact that a soap bubble has two surfaces affects excess pressure, not the value of surface tension itself. Hence Statement-II is false.