The suspension of slaked lime in water is known as
- lime water
- quick lime
- milk of lime
- aqueous solution of slaked lime
The Correct Option is C
Solution and Explanation
The correct answer is:
Option 3: Milk of lime
Explanation:
Quicklime (Option 2) is calcium oxide (CaO), which is obtained by heating limestone (calcium carbonate, CaCO3) in a kiln.
Lime water (Option 1) is an aqueous solution of calcium hydroxide (Ca(OH)2), which is prepared by dissolving slaked lime in water.
Milk of lime (Option 3) is a suspension of slaked lime (calcium hydroxide) in water. It is a milky white liquid that forms when excess water is added to calcium hydroxide.
Aqueous solution of slaked lime (Option 4) typically refers to lime water, not a suspension.
Thus, the suspension of slaked lime in water is known as milk of lime.
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Concepts Used:
Group 2 Elements
The group two or alkaline earth metals are s-block elements with two electrons in their s-orbital. They are alkaline earth metals. They are named so because of the alkaline nature of the hydroxides and oxides.
Alkaline earth metals are characterized by two s-electrons. This group of elements includes:
- Beryllium (Be)
- Magnesium (Mg)
- Calcium (Ca)
- Strontium (Sr)
- Barium (Ba)
- Radium (Ra)
Elements whose atoms have their s-subshell filled with their two valence electrons are called alkaline earth metals. Their general electronic configuration is [Noble gas] ns2. They occupy the second column of the periodic table and so-called as group two metals also.