Suspension of slaked lime in water is known as

1. Lime water

2. Quick lime

3. Milk of lime

4. Aqueous solution of slaked lime

Hint:  Slaked lime is Calcium hydroxide

Calcium hydroxide is prepared by adding water to quicklime (CaO).
CaO(s)Quick lime H2O(l)Ca(OH)2(s)Slaked lime
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.