Single Answer MCQ
Q-00002015
What are the products formed when calcium hydroxide reacts with carbon dioxide in air?
1
Calcium carbonate and water
2
Calcium oxide and carbon dioxide
3
Calcium bicarbonate and water
4
Calcium sulfate and carbon dioxide
Answer and Solution
Answer
A. Calcium carbonate and water
Solution:
When calcium hydroxide reacts with carbon dioxide in air, it forms calcium carbonate (a white precipitate) and water. This reaction is commonly observed when lime water (calcium hydroxide solution) turns milky due to the formation of calcium carbonate.
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