When carbon dioxide gas is passed through lime water then-calcium hydroxide is formed-yellow precipitate of calcium oxide is formed-white precipitate of calcium oxide nbsp-is formed-white precipitate of calcium carbonate is formed-

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Standard X

Chemistry

Double Displacement Reaction

When carbon d...

Question

When carbon dioxide gas is passed through lime water then:

calcium hydroxide is formed.

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white precipitate of calcium oxide is formed.

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white precipitate of calcium carbonate is formed.

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yellow precipitate of calcium oxide is formed.

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Solution

The correct option is C
white precipitate of calcium carbonate is formed.

When carbon dioxide ${(CO}_{2})$ is passed through lime water $({Ca(OH)}_{2})$ , a white precipitate of calcium carbonate
$({CaCO}_{3})$ is formed. This turns lime water milky. The reaction involved is:

${Ca(OH)}_{2} (aq) + {CO}_{2} (g) \to {CaCO}_{3} (s) ↓ + H_{2} O (l)$

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When carbon dioxide gas is passed through lime water then:

The correct option is C white precipitate of calcium carbonate is formed. When carbon dioxide (CO2) is passed through lime water (Ca(OH)2), a white precipitate of calcium carbonate (CaCO3) is formed. This turns lime water milky. The reaction involved is: Ca(OH)2(aq)+CO2(g)→CaCO3(s)↓+H2O(l)