Chemistry, asked by nilachala30, 11 months ago

preparation of plaster of paris
bleaching powder
baking soda
washing soda

Answers

Answered by Anonymous

7

Answer:

Plaster of Paris is prepared by heating Gypsum.

CaSO4.2H20 -----> CaSO4. 1/2H2O + 1.5H20

Bleaching Powder is made by passing chlorine through dry slaked lime.

Ca(OH)2 + Cl2 ---------> CaOCl2 + H2O

Baking Soda is prepared by adding water to sodium carbonate

Na2CO3 + 10H20 -------> NaHCO3.10H20

Washing Soda ,

NaCl + H20 + CO2 ------> NaHCO3

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