First slide

Alkaline earth metals

Question

Suspension of slaked lime in water is known as

Moderate

A

lime water
B

quick lime
C

milk of lime
D

aqueous solution of slaked lime

Solution

Calcium hydroxide is prepared by adding water to quick lime (CaO).
$\underset{Quick lime}{CaO (s)} + H_{2} O (1) ⟶ \underset{Slaked lime}{Ca (OH)_{2} (s)}$
It is a white amorphous powder. It is sparingly soluble in water.
So, it forms a suspension of slaked lime in water which is called milk of lime and the clear solution obtained after the suspension settles is known as lime water.

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