Which of the following are correct with respect to carbon dioxide?
(i) It is released due to incomplete combustion of fuels.
(ii) It does not affect humans.
(iii) It is a poisonous gas.
(iv) It reduces oxygen-carrying capacity of the blood.
(v) It is released from vehicles.

(i), (iii), (iv) and (v)

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(i), (ii) and (v)

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(i), (iv) and (v)

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(ii) and (v)

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Solution

The correct option is D
(ii) and (v)

Carbon dioxide is released due to complete combustion of fuels. It is not a poisonous gas. Only in very high quantities can carbon dioxide has an effect on the human body. Automobiles are a major contributor to carbon dioxide.

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Which of the following are correct with respect to carbon dioxide? (i) It is released due to incomplete combustion of fuels. (ii) It does not affect humans. (iii) It is a poisonous gas. (iv) It reduces oxygen-carrying capacity of the blood. ​(v) It is released from vehicles.

The correct option is D (ii) and (v) Carbon dioxide is released due to complete combustion of fuels. It is not a poisonous gas. Only in very high quantities can carbon dioxide has an effect on the human body. Automobiles are a major contributor to carbon dioxide.

Which of the following are correct with respect to carbon dioxide?
(i) It is released due to incomplete combustion of fuels.
(ii) It does not affect humans.
(iii) It is a poisonous gas.
(iv) It reduces oxygen-carrying capacity of the blood.
(v) It is released from vehicles.

The correct option is D
(ii) and (v)

Carbon dioxide is released due to complete combustion of fuels. It is not a poisonous gas. Only in very high quantities can carbon dioxide has an effect on the human body. Automobiles are a major contributor to carbon dioxide.