Solved papers for JEE Main & Advanced JEE Main Paper (Held On 25 April 2013)

done JEE Main Paper (Held On 25 April 2013) Total Questions - 2

• question_answer1)                 In nucleophilic substitution reaction, order of halogens as incoming (attacking) nucleophiles:                 \[{{\operatorname{I}}^{-}}>{{\operatorname{Br}}^{-}}>{{\operatorname{CI}}^{-}}\]                 The order of halogens as departing nucleophile should be :     JEE Main Online Paper ( Held On 25  April 2013 )
  A)
                  \[B{{r}^{-}}>{{I}^{-}}>C{{l}^{-}}\]              
  done clear
  B)
                                         \[{{I}^{-}}>B{{r}^{-}}>C{{l}^{-}}\]
  done clear
  C)
                                         \[C{{l}^{-}}>B{{r}^{-}}>{{I}^{-}}\]              
  done clear
  D)
                                         \[C{{l}^{-}}>{{I}^{-}}>B{{r}^{-}}\]
  done clear
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• question_answer2)                 Pheol on heating with \[CHC{{l}_{3}}\]and \[\text{NaOH}\]gives Salicylaldehyde. The reaction is called:     JEE Main Online Paper ( Held On 25  April 2013 )
  A)
                  Remer- Tiemenanraeaction
  done clear
  B)
                                         Claisen reaction
  done clear
  C)
                                         Cannizzareo?s reaction
  done clear
  D)
                                         Hell-volhard-Zelinsky reaction
  done clear
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