Solved papers for JEE Main & Advanced JEE Main Paper (Held on 7 May 2012)

done JEE Main Paper (Held on 7 May 2012) Total Questions - 2

• question_answer1) The concentrated sulphuric acid that is peddled commercial is \[95%{{H}_{2}}S{{O}_{4}}\] by weight. If the density of this commercial acid is 1.834 g\[c{{m}^{-3}},\] the molarity of this solution is   JEE Main Online Paper (Held On 07 May 2012)
  A)
  17.8 M          
  done clear
  B)
                         12.0 M
  done clear
  C)
                         10.5M                  
  done clear
  D)
                         15.7M
  done clear
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• question_answer2) The ratio of number of oxygen atoms (0) in 16.0 gozone \[({{O}_{3}}),\] 28.0 g carbon monoxide (CO) and16.0 oxygen \[({{O}_{2}})\] is (Atomic mass: C = 12,0 = 16and Avogadro's constant\[{{N}_{A}}=6.0\times {{10}^{23}}mo{{l}^{-1}}\])   JEE Main Online Paper (Held On 07 May 2012)
  A)
  3:1:2                                     
  done clear
  B)
                         1:1:2
  done clear
  C)
                         3:1:1                                     
  done clear
  D)
                         1:1:1
  done clear
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