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Write the chemical equation for the preparation of :

(a) Bleaching powder

(b) Plaster of Paris

(c) Caustic soda

Asked by Topperlearning User 4th February 2015, 10:13 AM
Answered by Expert
Answer:

(a) Bleaching powder:

Ca(OH)2    +    Cl2    →    CaOCl2    +    H2O

Calcium        Chlorine       Calcium        Water

Oxide                          oxychloride

(b) Plaster of Paris:

begin mathsize 12px style CaSO subscript 4.2 straight H subscript 2 straight O space space space rightwards arrow from 373 straight K to Heat space of space space space CaSO subscript 4. begin inline style 1 half end style straight H subscript 2 straight O space plus space 1 begin inline style 1 half end style straight H subscript 2 straight O
Gypsum space space space space space space space space space space space space space space space space space space space space space space space Plaster space of space paris space space space space space space space space Water space space space space space space space end style

(c) Caustic soda:

begin mathsize 12px style 2 NaCl space space space space space plus space space space space space 2 straight H subscript 2 straight O space space space space rightwards arrow from left parenthesis Electrolysis right parenthesis to Electricity of space space space space 2 NaOH space space space space space plus space space space space space Cl subscript 2 space space space space space plus space space straight H subscript 2
Sodium space space space space space space space space space space space space Water space space space space space space space space space space space space space space space space space space space space space space space space space space Caustic space space space space space space space space space Chlorine space space space space Hydrogen
Chloride space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space soda end style

Answered by Expert 4th February 2015, 12:13 PM
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