MHT CET Chemistry Question (2026) — Solution

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: Cleansing action of soap