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 - 2

• question_answer1) The ppm level of \[{{F}^{-}}\]in a 500 g sample of a tooth paste containing 0.2 g \[{{F}^{-}}\]is     JEE Main Online Paper (Held On 12 May 2012)
  A)
  400   
  done clear
  B)
                         1000
  done clear
  C)
                         250                                        
  done clear
  D)
                         200
  done clear
  View Answer play_arrow

• question_answer2) 5 g of benzene on nitration gave 6.6 g of nitrobenzene. The theoretical yield of the nitrobenzene will be     JEE Main Online Paper (Held On 12 May 2012)
  A)
  4.5 g                                      
  done clear
  B)
                         5.6g
  done clear
  C)
                         8.09g                                    
  done clear
  D)
                         6.6g
  done clear
  View Answer play_arrow