First slide

Alkaline earth metals

Question

Which of the following statements is true about Ca(OH)₂ ?

Moderate

A

It is used in the preparation of bleaching powder
B

It is a light blue solid
C

It is very acidic in nature.
D

It does not possess disinfectant property

Solution

Calcium hydroxide is used in the manufacture of bleaching powder
$\underset{slaked lime}{2 Ca (OH)_{2}} + 2 {Cl}_{2} \overset{Cold}{⟶} {CaCl}_{2} + \underset{Bleaching powder}{Ca (OCl)_{2}} + 2 H_{2} O$

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