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Following statements are made in connection with carbon dioxide (CO2)
1. CO2 is a poisonous gas.
2. CO2 is an acidic oxide.
3. CO2 turns limewater milky.
1. CO2 is a poisonous gas.
2. CO2 is an acidic oxide.
3. CO2 turns limewater milky.
Which of the statements given above is/are correct?
- a)1 and 2
- b)2 and 3
- c)3 only
- d)1 and 3
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Following statements are made in connection with carbon dioxide (CO2)1...
(i) CO2 is an acidic oxide. It dissolve in water formic unstable carbonic acid.
(ii) Limewater Ca(OH)2 is turned milky on passing CO2
Most Upvoted Answer
Following statements are made in connection with carbon dioxide (CO2)1...
Understanding the Statements on CO2
To determine the correctness of the statements given about carbon dioxide (CO2), let’s analyze each one in detail.
Statement 1: CO2 is a poisonous gas.
- CO2 is not classified as a poisonous gas.
- While it is true that high concentrations can lead to asphyxiation by displacing oxygen, it is not toxic in the way that many other gases (like carbon monoxide) are.
Statement 2: CO2 is an acidic oxide.
- This statement is correct.
- CO2 reacts with water to form carbonic acid (H2CO3), which is a weak acid.
- Hence, it is categorized as an acidic oxide due to its ability to react with bases and form salts and water.
Statement 3: CO2 turns limewater milky.
- This statement is also correct.
- When CO2 is bubbled through limewater (a solution of calcium hydroxide), it reacts to form calcium carbonate (CaCO3), which is insoluble and appears as a milky precipitate.
Conclusion
Based on the evaluation:
- Statement 1 is incorrect.
- Statements 2 and 3 are correct.
Thus, the correct option is b) 2 and 3. This aligns with the properties and reactions of carbon dioxide in both chemistry and environmental science contexts.
To determine the correctness of the statements given about carbon dioxide (CO2), let’s analyze each one in detail.
Statement 1: CO2 is a poisonous gas.
- CO2 is not classified as a poisonous gas.
- While it is true that high concentrations can lead to asphyxiation by displacing oxygen, it is not toxic in the way that many other gases (like carbon monoxide) are.
Statement 2: CO2 is an acidic oxide.
- This statement is correct.
- CO2 reacts with water to form carbonic acid (H2CO3), which is a weak acid.
- Hence, it is categorized as an acidic oxide due to its ability to react with bases and form salts and water.
Statement 3: CO2 turns limewater milky.
- This statement is also correct.
- When CO2 is bubbled through limewater (a solution of calcium hydroxide), it reacts to form calcium carbonate (CaCO3), which is insoluble and appears as a milky precipitate.
Conclusion
Based on the evaluation:
- Statement 1 is incorrect.
- Statements 2 and 3 are correct.
Thus, the correct option is b) 2 and 3. This aligns with the properties and reactions of carbon dioxide in both chemistry and environmental science contexts.
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Following statements are made in connection with carbon dioxide (CO2)1. CO2 is a poisonous gas.2. CO2 is an acidic oxide.3. CO2 turns limewater milky.Which of the statements given above is/are correct?a)1 and 2b)2 and 3c)3 onlyd)1 and 3Correct answer is option 'B'. Can you explain this answer?
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