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Virat
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Asked: 2025-09-27T03:58:32+00:00 In:

When excess of carbon dioxide is passed through lime water, the milkiness disappears because [A] water soluble calcium carbonate converts to water soluble calcium bicarbonate. [B] insoluble calcium carbonate converts to water soluble calcium bicarbonate. [C] water soluble calcium carbonate converts to insoluble calcium bicarbonate. [D] insoluble calcium carbonate converts to insoluble calcium bicarbonate.

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The correct answer is [B]. When excess carbon dioxide is passed through lime water, the initially formed insoluble calcium carbonate reacts further with CO₂ and water to form water-soluble calcium bicarbonate, causing the milkiness in lime water to disappear.

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