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Q.
Which of the following statements is true about $Ca(OH)_2$ ?
The s-Block Elements
Solution:
Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula $Ca ( OH )_{2} .$ It is a colorless crystal or white powder and is obtained when calcium oxide (called lime or quicklime) is mixed, or slaked with water. Chlorine gas and dry slaked lime is used to produced bleaching powder. Hence option $A$ is correct answer.