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When chlorine is passed over dry slaked lime at room temperature, the main reaction product is

1. (a) Ca(ClO₂)₂
2. (b) CaCl₂
3. (c) CaOCl₂
4. (d) Ca(ClO₂)

Correct answer: (c) CaOCl₂

Solution

When chlorine reacts with dry slaked lime (Ca(OH)₂) at room temperature, it forms bleaching powder, which is chemically calcium oxychloride (CaOCl₂).

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