Solved papers for JEE Main & Advanced JEE Main Paper (Held On 12 May 2012)

done JEE Main Paper (Held On 12 May 2012) Total Questions - 1

• question_answer1) Water sample is reported to be highly polluted if BOD (Biological Oxygen Demand) value of sample becomes     JEE Main Online Paper (Held On 12 May 2012)
  A)
  more than 17 ppm          
  done clear
  B)
                         equal to 10 ppm
  done clear
  C)
                         equal to 5 ppm                 
  done clear
  D)
                         less than 5 ppm
  done clear
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