MHT CET202619 April 2026Morning ShiftChemistryStates of MatterActual
Which of the following is not an illustration of viscosity?
Options
- AGradation of lubricant oils
- BIndication of Cardiovascular disease
- CCleansing action of soap
- DThickening of glass panes of old buildings
Correct answer
C. Cleansing action of soap
Step-by-step solution
Gradation of lubricant oils is done on the basis of their viscosity. High viscosity of blood is an indicator of cardiovascular diseases. Glass is a supercooled liquid with very high viscosity, which causes it to flow downwards very slowly over time, resulting in the thickening of glass panes at the bottom in old buildings. The cleansing action of soap is based on the principle of surface tension, not viscosity. Soap lowers the surface tension of water, allowing it to spread and penetrate more easily. Answer: Cleans