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What happens to the lime water, when we exhale air into it?
- a)turns blue
- b)turns to milky
- c)remains same
- d)become colourless
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
What happens to the lime water, when we exhale air into it?a)turns blu...
Explanation:
When we exhale air into lime water, a chemical reaction occurs between the carbon dioxide in our breath and the calcium hydroxide in the lime water. This reaction produces a white precipitate called calcium carbonate.
The lime water changes from clear to milky because of the formation of the calcium carbonate precipitate. This is the result of the following reaction:
CO2 (carbon dioxide) + Ca(OH)2 (calcium hydroxide) → CaCO3 (calcium carbonate) + H2O (water)
The calcium carbonate is insoluble in water and forms a milky suspension in the lime water. This is a visual indicator that carbon dioxide is present in our breath.
So, the correct answer is B: "turns to milky."
When we exhale air into lime water, a chemical reaction occurs between the carbon dioxide in our breath and the calcium hydroxide in the lime water. This reaction produces a white precipitate called calcium carbonate.
The lime water changes from clear to milky because of the formation of the calcium carbonate precipitate. This is the result of the following reaction:
CO2 (carbon dioxide) + Ca(OH)2 (calcium hydroxide) → CaCO3 (calcium carbonate) + H2O (water)
The calcium carbonate is insoluble in water and forms a milky suspension in the lime water. This is a visual indicator that carbon dioxide is present in our breath.
So, the correct answer is B: "turns to milky."
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What happens to the lime water, when we exhale air into it?a)turns blueb)turns to milkyc)remains samed)become colourlessCorrect answer is option 'B'. Can you explain this answer?
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