Question

solution, barium chloride solution, water. (A) Action of water on quick lime Diagram: Dropper 170 Procedure : (1) Take about 10 g of quick lime (Cao) in a clean china dish. Place the china dish on an asbestos sheet. (2) Take some water in a beaker. With the help of a dropper add a few drops of water on quick lime in the dish. Record your observations. China dish Water drops Quick lime Asbestos sheet Action of water on quick lime Observation table : Observation Experimental procedure 1. Water is added to quick lime. 2. The noise produced in the reaction. 3. The heat is absorbed or evolved luring the reaction. 4. A gas or vapour is formed during the reaction. 5. The change in the physical state. Chemical reaction : CaO(s) HO + 2(aq) Heat Calcium Oxide (Quick lime) (Water) Ca(OH), Calcium Hydroxide (Slaked lime) LO Navneet Science And Technology Practical Book : Std. X​

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