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The chemical used to test the carbon dioxide gas in exhaled air is
- a)Lime water
- b)Lime stone
- c)Lime juice
- d)Quick lime
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
The chemical used to test the carbon dioxide gas in exhaled air isa)Li...
Lime water is used to test the carbon dioxide gas in inhaled air because lime water turns milky in presence of carbon dioxide.
Most Upvoted Answer
The chemical used to test the carbon dioxide gas in exhaled air isa)Li...
Chemical used to test carbon dioxide gas in exhaled air is Lime water.
Explanation:
Carbon dioxide is a waste product that is produced during respiration in living organisms. It is released into the air when we exhale. Lime water, also known as calcium hydroxide solution, is commonly used to test for the presence of carbon dioxide gas in exhaled air. Here is an explanation of why lime water is used for this purpose:
1. Lime Water:
Lime water is a clear, colorless solution made by dissolving calcium hydroxide (Ca(OH)2) in water. It has a chemical property that allows it to react with carbon dioxide gas.
2. Reaction with Carbon Dioxide:
When carbon dioxide gas is bubbled through lime water, a reaction occurs. The carbon dioxide reacts with the calcium hydroxide in the lime water to form calcium carbonate (CaCO3), which is insoluble and precipitates out of the solution. This reaction can be represented by the following equation:
Ca(OH)2 + CO2 → CaCO3 + H2O
3. Formation of Precipitate:
The formation of calcium carbonate as a precipitate is the key indicator that carbon dioxide is present in the exhaled air. This precipitate appears as a milky white substance that makes the lime water cloudy.
4. Visual Test:
To test for the presence of carbon dioxide, a person can blow exhaled air into a container of lime water. If carbon dioxide is present in the exhaled air, the lime water will turn cloudy due to the formation of calcium carbonate precipitate. This visual change indicates that carbon dioxide gas was present in the exhaled air.
Conclusion:
In conclusion, lime water is used to test for the presence of carbon dioxide gas in exhaled air. The carbon dioxide reacts with the calcium hydroxide in the lime water, forming a precipitate of calcium carbonate. This reaction causes the lime water to turn cloudy, indicating the presence of carbon dioxide.
Explanation:
Carbon dioxide is a waste product that is produced during respiration in living organisms. It is released into the air when we exhale. Lime water, also known as calcium hydroxide solution, is commonly used to test for the presence of carbon dioxide gas in exhaled air. Here is an explanation of why lime water is used for this purpose:
1. Lime Water:
Lime water is a clear, colorless solution made by dissolving calcium hydroxide (Ca(OH)2) in water. It has a chemical property that allows it to react with carbon dioxide gas.
2. Reaction with Carbon Dioxide:
When carbon dioxide gas is bubbled through lime water, a reaction occurs. The carbon dioxide reacts with the calcium hydroxide in the lime water to form calcium carbonate (CaCO3), which is insoluble and precipitates out of the solution. This reaction can be represented by the following equation:
Ca(OH)2 + CO2 → CaCO3 + H2O
3. Formation of Precipitate:
The formation of calcium carbonate as a precipitate is the key indicator that carbon dioxide is present in the exhaled air. This precipitate appears as a milky white substance that makes the lime water cloudy.
4. Visual Test:
To test for the presence of carbon dioxide, a person can blow exhaled air into a container of lime water. If carbon dioxide is present in the exhaled air, the lime water will turn cloudy due to the formation of calcium carbonate precipitate. This visual change indicates that carbon dioxide gas was present in the exhaled air.
Conclusion:
In conclusion, lime water is used to test for the presence of carbon dioxide gas in exhaled air. The carbon dioxide reacts with the calcium hydroxide in the lime water, forming a precipitate of calcium carbonate. This reaction causes the lime water to turn cloudy, indicating the presence of carbon dioxide.
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The chemical used to test the carbon dioxide gas in exhaled air isa)Li...
A) Lime water
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The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer?
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The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer?.
The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The chemical used to test the carbon dioxide gas in exhaled air isa)Lime waterb)Lime stonec)Lime juiced)Quick limeCorrect answer is option 'A'. Can you explain this answer?.
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