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Which of the following statements about carbon dioxide \small \mathrm{CO_{2}} is true?

Option: 1

\mathrm{CO_{2}} is a reducing agent.


Option: 2

\mathrm{CO_{2}} is soluble in water, forming an acidic solution.


Option: 3

\mathrm{CO_{2}}  is a linear molecule with no dipole moment.


Option: 4

\mathrm{CO_{2}} is a stable compound that does not react with any other elements.


Answers (1)

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The correct answer is (B) \mathrm{CO_{2}} is soluble in water, forming an acidic solution. When carbon dioxide dissolves in water, it reacts with water to form carbonic acid, which is a weak acid and can lower the pH of the solution. Hence option B is the correct answer.

Option (A) is incorrect because \mathrm{CO_{2}} is an oxidizing agent, not a reducing agent.  Hence option A  is incorrect.

Option (C) is incorrect because \mathrm{CO_{2}} is a linear molecule with a dipole moment due to the difference in electronegativity between carbon and oxygen.  Hence option C is incorrect.

Option (D) is incorrect because \mathrm{CO_{2}} can react with other compounds, such as in the process of photosynthesis. Hence option D is incorrect.

Posted by

Ramraj Saini

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