The Salt Story From: The New Indian Express 9 March 2021 The salt pans in Marakkanam, a port town about 120 km from Chennai are the third largest producer of salt in Tamil Nadu. Separation of salt from water is a laborious process and the salt obtained is used as raw materials for manufacture of various sodium compounds. One such compound is Sodium hydrogen carbonate, used in baking, as an antacid and in soda acid fire extinguishers. The table shows the mass of various compounds obtained when 1litre of sea water is evaporated(I) Which compound in the table reacts with acids to release carbon dioxide? A. NaClB. CaSO4 C. CaCO3 D. MgSO4(II) How many grams of Magnesium Sulphate are present in 135g of solid left by evaporation of sea water? A. 6g B. 12g C. 18g D. 24g(III) What is the saturated solution of Sodium Chloride called? A. Brine B. Lime water C. Slaked lime D. Soda water(IV) What is the pH of the acid which is used in the formation of common salt? A. Between 1 to 3 B. Between 6 to 8 C. Between 8 to 10 D. Between 11 to 13