Answer the following:(a) Why is plaster of Paris written as CaSO4.12H2O? How is it possible to have half a water molecule attached to CaSO4?(b) Why is sodium hydrogencarbonate an essential ingredient in antacids?(c) When electricity is passed through an aqueous solution of sodium chloride, three products are obtained. Why is the process called chlor-alkali?

Answer the following:(a) Why is plaster of Paris written as CaSO4.12H2

1.	Answer the following:(a) Why is plaster of Paris written as CaSO4.12H2O? How is it possible to have half a water molecule attached to CaSO4?(b) Why is sodium hydrogencarbonate an essential ingredient in antacids?(c) When electricity is passed through an aqueous solution of sodium chloride, three products are obtained. Why is the process called chlor-alkali?
Answer» Answer the following: (a) Why is plaster of Paris written as ${CaSO}_{4} . \frac{1}{2} H_{2} O$ ? How is it possible to have half a water molecule attached to CaSO₄? (b) Why is sodium hydrogencarbonate an essential ingredient in antacids? (c) When electricity is passed through an aqueous solution of sodium chloride, three products are obtained. Why is the process called chlor-alkali?