Q.

Lime water turns milky when carbon dioxide is passed through it. It is due to the for mation of:

A. Calcium Carbonate
B. Barium Carbonate
C. Calcium Hydrogen Carbonate
D. Calcium Oxide
Answer» A. Calcium Carbonate
Explanation: When carbon dioxide is passed through lime water for a short time, it turns lime water milky due to formation of a white precipitate of calcium carbonate.
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