MCQ
Which of the following statements is true about $\ce{Ca(OH)_2}$?
- ✓It is used in the preparation of bleaching powder.
- BIt is a light blue solid.
- CIt does not possess disinfectant property.
- DIt is used in the manufacture of cement.
✓
Answer
Correct option: A.
It is used in the preparation of bleaching powder.
$2\text{Ca}(\text{OH}_2)+2\text{Cl}_2\xrightarrow{\ \ \ \ }\text{CaCl}_2+\text{Ca}(\text{OCl})_2+\text{H}_2\text{O}\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Bleaching powder}$
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