GK
ELEMENTS COMPOUNDS SUBSTANCES METALS AND NON METALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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C
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O
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H
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Ca
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Detailed explanation-1: -Calcium hydroxide is a base. The metal in the given compound is calcium and the non metals present are hydrogen and oxygen.
Detailed explanation-2: -Calcium hydroxide, also called slaked lime, Ca(OH)2, is obtained by the action of water on calcium oxide. When mixed with water, a small proportion of it dissolves, forming a solution known as limewater, the rest remaining as a suspension called milk of lime.
Detailed explanation-3: -The metal present is sodium (Na).
Detailed explanation-4: -calcium oxidandiide, also known as lime, belongs to the class of inorganic compounds known as alkaline earth metal oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of-2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal.
Detailed explanation-5: -Calcium hydroxide is also known as slaked lime. It is a source of hydroxide ions when dissolved in aqueous solutions. That’s why this compound is a base. Due to electrolyte dissociation, Calcium hydroxide liberates OH^-ions.