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Which of the following is a common use of carbon dioxide \mathrm{CO_{2}} ?

Option: 1

As a fuel in combustion reactions.
 


Option: 2

As a refrigerant in cooling systems.
 


Option: 3

As a fertilizer for plants.

 


Option: 4

As a solvent for organic compounds.


Answers (1)

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The correct answer is (2) As a refrigerant in cooling systems. Carbon dioxide is commonly used as a refrigerant in cooling systems due to its low toxicity and non-flammability. Hence option 2 is the correct answer.

Option (1) is incorrect because \mathrm{CO_{2}} is not a fuel and does not participate in combustion reactions.  Hence option 1  is incorrect.

Option (3) is incorrect because while \mathrm{CO_{2}} can be used as a source of carbon for plants, it is not a fertilizer.   Hence option 3 is incorrect.

Option (4) is incorrect because \mathrm{CO_{2}} is not a solvent for organic compounds. Hence option 4 is incorrect.

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Rishabh

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