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 limiting line in Balmer series will have a frequency of (Rydberg constant, \[{{R}_{\infty }}=3.29\times {{10}^{15}}\]cycles/s)   JEE Main Online Paper (Held On 07 May 2012)
  A)
                  \[8.22\times {{10}^{14}}{{s}^{-1}}\]
  done clear
  B)
                         \[3.29\times {{10}^{15}}{{s}^{-1}}\]
  done clear
  C)
                         \[3.65\times {{10}^{14}}{{s}^{-1}}\]                        
  done clear
  D)
                         \[5.26\times {{10}^{13}}{{s}^{-1}}\]
  done clear
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• question_answer2) Which is not the correct Statement? (At.nos.\[\text{Ce}=\text{58},\text{Lu}=\text{71},\text{La}=\text{57},\text{Yb}=\text{7}0\])     JEE Main Online Paper (Held On 07 May 2012)
  A)
  Colour of \[Y{{b}^{3+}}\] ion is pink.
  done clear
  B)
                         \[L{{a}^{3+}}\]is diamagnetic.
  done clear
  C)
                         \[C{{e}^{4+}}\] has\[{{f}^{0}}\] configuration.
  done clear
  D)
                         \[L{{u}^{3+}}\]had\[{{f}^{14}}\] configuration.
  done clear
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