20. Name the process associated with the following:(i) Dry ice is kept at room temperature and at one atmospheric pressure.(ii) A drop of ink placed on the surface of water contained in a glass spreads throughout the water.(iii) A potassium permanganate crystal is in a beaker and water is poured into the beaker with stirring.(iv) A acetone bottle is left open and the bottle becomes empty.(v) Milk is churned to separate cream from it.(vi) Settling of sand when a mixture of sand and water is left undisturbed for some time.(vii) Fine beam of light entering through a small hole in a dark room, illuminates the particles in its paths.
Harshit Singh , 4 Years ago
Grade 12th pass
