Lime water contains _________.A. Calcium hydroxideB. Calcium oxalateC. Calcium hydrideD. Calcium sulfate
Lime water contains _________.A. Calcium hydroxideB. Calcium oxalateC. Calcium hydrideD. Calcium sulfate
Aniket Singh , 11 Months ago
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11 grade chemistry others> Lime water contains _________.A. Calcium ...
1 AnswersAskiitians Tutor Team
The correct answer is A. Calcium hydroxide.
Explanation:
Lime water is a common name for a diluted solution of calcium hydroxide (Ca(OH)₂) in water.
Calcium hydroxide (Ca(OH)₂) is slightly soluble in water and forms a clear, colorless solution known as lime water. When exposed to carbon dioxide (CO₂) from the air, it forms calcium carbonate (CaCO₃), which makes the solution turn cloudy. This is often used as a test for the presence of CO₂.
The other options do not describe lime water:
Calcium oxalate (CaC₂O₄) is an insoluble compound commonly found in kidney stones.
Calcium hydride (CaH₂) is a compound used as a drying agent or for hydrogen gas production.
Calcium sulfate (CaSO₄) is found in gypsum, and is not what lime water consists of.
Thus, lime water contains calcium hydroxide (Ca(OH)₂).
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