Consider the following statements: 1. Baking soda is used in fire extinguishers. 2. Quicklime is used in the manufacture of glass. 3. Gypsum is used in the manufacture of Plaster of Paris. Which of the statements given above is/are correct?

1. Statement 1 is correct. Baking soda (Sodium bicarbonate, NaHCO3) decomposes upon heating to release carbon dioxide gas, which smothers flames. It is used in some types of fire extinguishers (specifically, dry chemical extinguishers). 2. Statement 2 is correct. Quicklime (Calcium oxide, CaO) is used in the manufacture of glass as a source of calcium, which increases the hardness and chemical durability of the glass. 3. Statement 3 is correct. Gypsum (Calcium sulfate dihydrate, CaSO4·2H2O) is heated to produce Plaster of Paris (Calcium sulfate hemihydrate, CaSO4·½H2O). This process involves the partial dehydration of gypsum. Therefore, all three statements are correct.