Slaked lime (Ca(OH)₂) solution is used for whitewashing. Slaked lime reacts with CO₂ in air to form CaCO₃.
Which of the following statements with regard to the reaction given below are correct? CaO(s) + H₂O(l) → Ca(OH)₂(aq) + Heat 1. Quicklime is used for white-washing of walls. 2. The solution of slaked lime is used for whitewashing of walls. 3. CaO reacts slowly with CO₂ in air to form a thin layer of CaCO₃ on walls. 4. Calcium hydroxide called ‘slaked lime’ is an inorganic compound. Select the correct answer using the code given below.
Asked in UPSC CDS 1 2023 · Topic: Inorganic Chemistry (Chemistry of Main Group Elements (s-block and p-block))
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