Uttarakhand PMT Uttarakhand PMT Solved Paper-2011

  • question_answer
    Which of the following is a secondary pollutant?

    A)  NO             

    B)  CO

    C)  \[S{{O}_{2}}\]            

    D)  Phenols

    Correct Answer: D

    Solution :

     Phenols are secondary pollutants. These are formed by chemical reactions between the primary pollutants in the atmosphere.


You need to login to perform this action.
You will be redirected in 3 sec spinner