Q. A small drop of oil spreads over water because : (Solved)
1. oil has a higher surface tension
2. water has a higher surface tension
3. oil has a higher viscosity
4. water has a higher viscosity
- b. water has a higher surface tension
1. oil has a higher surface tension
2. water has a higher surface tension
3. oil has a higher viscosity
4. water has a higher viscosity