Q: 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 whitewashing 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.
(a)1 and 4 only
(b)2 and 4
(c)2 and 3
(d)1, 3 and 4
Correct Answer: (b)
The correct answer is (c) '2 और 3'. This question from the General Studies domain tests knowledge of Miscellaneous.