11th Class Chemistry Environmental Chemistry

  • question_answer 21) Which of the following gases is not a greenhouse gas? (a) \[CO\]                                            (b) \[{{O}_{3}}\]                                               (c) \[C{{H}_{4}}\]                              (d) \[{{H}_{2}}O\]vapour


     (a) The gases which absorb sunlight energy near the earth's surface and then its radiation back to the earth are called greenhouse gases. Carbon dioxide, water vapour, methane, ozone, oxides of nitrogen, chlorofluorocarbons, etc., are greenhouse gases. CO is not a greenhouse gas.

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