Question : Which of the following bases is found in lime water?
Option 1: Calcium hydroxide
Option 2: Potassium hydroxide
Option 3: Magnesium hydroxide
Option 4: Ammonium hydroxide
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Correct Answer: Calcium hydroxide
Solution : The correct answer is Calcium hydroxide .
Lime water contains calcium hydroxide, which is a strong base. The chemical formula for calcium hydroxide is Ca(OH) 2 . When calcium oxide (quicklime) reacts with water, it forms calcium hydroxide, resulting in lime water. The hydroxide ions (OH⁻) from calcium hydroxide make it a base.
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