Question

Short notes on bleaching powder and plaster of paris

Answer 1

A white powder that decomposes on contact with water and has the characteristic odor of gaseous chlorine: regarded, when dry, as a mixed calcium hypochlorite-chloride, used as a commercial bleach for wood pulp, textiles, oils, and soaps, and in laundering as a decolorizer and disinfectant.

Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, CaSO4· 1/2 H2O, a white powder thatforms a paste when it is mixed with water and then hardens into a solid, used in making casts, molds, and sculpture.

Answer 2

Answer:

plaster of paris is a white powder

it easily absorb water in air and forms hard gypsum

so it should be stored in a moisture proof container