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NEET AIPMT SOLVED PAPER 2001

  • question_answer
                                      What is BOD?                                                                                                                                                    

    A)                 The amount of \[{{O}_{2}}\] utilized by organisms in water

    B)                 The amount of \[{{O}_{2}}\] utilized by micro­organisms for decomposition

    C)                 The total amount of \[{{O}_{2}}\] present in water

    D)                 All of the above

    Correct Answer: B

    Solution :

                    Biological Oxygen Demand (BOD) is the amount of \[{{O}_{2}}\] required for biological oxidation by micro-organisms in any unit volume of water.


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