When molten sulphur is suddenly cooled by pouring it into water, we get
Milk of sulphur
Colloidal sulphur
Flower of sulphur
Plastic sulphur
When water is cooled, it gets converted into ice by a process called P. When ice is warmed, it gets reconverted into the water in a process called Q. Identify P and Q.
When water is heated, it gets converted into steam by a process called A. When steam is cooled, it is again converted into water by a process called B. Identify A and B.