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NEETChemistrys Block Elements

Which alkaline earth metal hydroxide is used in the preparation of the traditional building material known as lime mortar?

Options

  1. ABeryllium hydroxide (Be(OH) 2 )
  2. BMagnesium hydroxide (Mg(OH) 2 )
  3. CCalcium hydroxide (Ca(OH) 2 )
  4. DBarium hydroxide (Ba(OH) 2 )

Correct answer

C. Calcium hydroxide (Ca(OH) 2 )

Step-by-step solution

Calcium hydroxide (Ca(OH) 2 ), also known as slaked lime, is used in the preparation of lime mortar, a traditional building material. When calcium hydroxide reacts with carbon dioxide from the air, it forms calcium carbonate, which hardens and strengthens the mortar.

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