Solved papers for JEE Main & Advanced JEE Main Solved Paper-2014

done JEE Main Solved Paper-2014 Total Questions - 4

• question_answer1) 63. The metal that cannot be obtained by electrolysis of an aqueous solution of its salts is :   JEE Main  Solved  Paper-2014
  A)
  Cu                                          
  done clear
  B)
  Cr
  done clear
  C)
  Ag                                          
  done clear
  D)
  Ca
  done clear
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• question_answer2) Resistance of 0.2 M solution of an electrolyte is \[50\Omega .\]The specific conductance of the solution is\[\text{S}{{\text{m}}^{\text{-1}}}\]. The resistance of 0.5 M solution of the same electrolyte is \[280\Omega .\]The molarconductivity of 0.5 M solution of the electrolyte in \[\text{S}\,{{\text{m}}^{\text{2}}}\,\text{mo}{{\text{l}}^{-1}}\] is :   JEE Main  Solved  Paper-2014
  A)
  \[5\times {{10}^{3}}\]                   
  done clear
  B)
  \[5\times {{10}^{2}}\]
  done clear
  C)
  \[5\times {{10}^{-4}}\]
  done clear
  D)
  \[5\times {{10}^{-3}}\]
  done clear
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• question_answer3) The equivalent conductance of NaCl at concentration C and at infinite dilution are \[{{\lambda }_{C}}\] and \[{{\lambda }_{\infty }}\]respectively. The correct relationship between \[{{\lambda }_{C}}\] and \[{{\lambda }_{\infty }}\]is given as : (where the constant B is positive)   JEE Main  Solved  Paper-2014
  A)
  \[{{\lambda }_{C}}={{\lambda }_{\infty }}-(B)\sqrt{C}\] 
  done clear
  B)
  \[{{\lambda }_{C}}={{\lambda }_{\infty }}+(B)\sqrt{C}\]
  done clear
  C)
  \[{{\lambda }_{C}}={{\lambda }_{\infty }}+(B)C\]             
  done clear
  D)
  \[{{\lambda }_{C}}={{\lambda }_{\infty }}-(B)C\]
  done clear
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• question_answer4) Given below are the half − cell reaction : \[M{{n}^{2+}}+2{{e}^{-}}\to Mn;{{E}^{o}}=-1.18V\] \[2(M{{n}^{3+}}+{{e}^{-}}\to M{{n}^{2+}});{{E}^{o}}=+1.51V.\] The \[E{}^\circ \]for \[3M{{n}^{2+}}\to Mn+2M{{n}^{3+}}\]will be   JEE Main  Solved  Paper-2014
  A)
  0.33 V ; the reaction will not occur
  done clear
  B)
  −0.33 V ; the reaction will occur
  done clear
  C)
  −2.69 V ; the reaction will not occur
  done clear
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