Which of the following statement is correct related to the Surface tension?
1
It is the tension of the surface film of a liquid caused due to the attraction of the particles in the surface layer by the bulk of the liquid, which tends to maximize surface area.
2
When impurities are added to the water the intermolecular distance decreases due to which Van der Wall forces increase.
3
When impurities are dissolved in water, the surface tension of water decreases.
4
When impurities are dissolved in water, the surface tension of water increases.