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?

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Following statements are made in connection with carbon dioxide (CO<sub>2</sub>)<br />1. CO<sub>2</sub> is a poisonous gas.<br />2. CO<sub>2</sub> is an acidic oxide.<br />3. CO<sub>2</sub> turns limewater milky. Which of the statements given above is/are correct?