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Question : The chemical formula of bleaching powder is ______.
Option 1: CaOCl2
Option 2: CaO
Option 3: CaCO3
Option 4: Ca(OH)2
Answer (1)
Correct Answer: CaOCl2
Solution : The correct answer is CaOCl2.
Bleaching powder is typically produced by the reaction of calcium Hydroxide [Ca(OH)2] with chlorine gas (Cl2). The chemical reaction is as follows:
Ca(OH)2 + Cl2 → Ca(ClO)2 + H2O
In this reaction, Calcium Hydroxide reacts with Chlorine gas to form calcium Hypochlorite and water. Calcium Hypochlorite, or bleaching powder, has the chemical formula Ca (ClO)2.
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