Incorrect statement among the following

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HFC-134a(CF3.CH2F) is considered to be more ecofriendly

Switching from air (78%N2) to pure O2 eliminates pollutant NO

Halons are green house gas compounds used in fire fighters

CFC's are eco friendly

answer is D.

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Detailed Solution

Freons are chlorofluorocarbons and are responsible for depletion of ozone layer. Hence these are not ecofriendly.

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