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3 How caustic soda obtained ? Mention its uses Equipon
4 HOW es plaster of Paris prepared2 write the reaction
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3 How caustic soda obtained ? Mention its uses Equipon?
Ans: Caustic Soda Lye is one of the most widely used chemicals in the industry. ... The main applications are water treatment and water purification, as cleaning agent, or a wide range of usesin chemical industry like starch production or for the desulphurization in the petrochemical industry.
4 HOW es plaster of Paris prepared2 write the reaction ?
Ans: Plaster of Paris is prepared by heating gypsum at 373 K. On heating, it loses water molecules and becomes calcium sulphate hemihydrate (CaSO4. 1/2 H2O) which is called Plaster of Paris.
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