Science, asked by kujur50, 1 year ago

what are the method of preparation for following (a)bleaching power (b)washing soda (c) baking soda(c) plaster of pairsband use of plaster of pairs

Answers

Answered by jeevitha7674

1

Answer:

Ca(OH)2 +Cl2= CaOCl2 + H2O

hence calcium hydroxide and chlorine gas reacts together to form bleaching powder

Na2CO3 + 10H2O= Na2CO3.10H2O

hence sodium carbonate when reacted with water forms hydrated sodium carbonate

NaCl+ H2O + CO2+ NH3= NaHCO3+ NH4Cl

baking soda is prepared by the above reaction

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