Solved papers for JEE Main & Advanced JEE Main Paper (Held On 9 April 2014)

done JEE Main Paper (Held On 9 April 2014) Total Questions - 4

• question_answer1) For the compounds\[C{{H}_{3}}Cl,C{{H}_{3}}Br,C{{H}_{3}}I\]and \[C{{H}_{3}}F,\]the correct order of increasing C-halogen bond length is:   [JEE Main Online Paper ( Held On 09 Apirl  2014  )
  A)
  \[C{{H}_{3}}F<C{{H}_{3}}Cl<C{{H}_{3}}Br<C{{H}_{3}}I\]
  done clear
  B)
  \[C{{H}_{3}}F<C{{H}_{3}}Br<C{{H}_{3}}CI<C{{H}_{3}}I\]
  done clear
  C)
  \[C{{H}_{3}}F<C{{H}_{3}}I<C{{H}_{3}}Br<C{{H}_{3}}Cl\]
  done clear
  D)
  \[C{{H}_{3}}Cl<C{{H}_{3}}Br<C{{H}_{3}}F<C{{H}_{3}}I\]
  done clear
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• question_answer2) Allyl phenyl ether can be prepared by heating:   [JEE Main Online Paper ( Held On 09 Apirl  2014  )
  A)
  \[{{C}_{6}}{{H}_{5}}Br+C{{H}_{2}}=CH-C{{H}_{2}}-ONa\]
  done clear
  B)
  \[C{{H}_{2}}=CH-C{{H}_{2}}-Br-{{C}_{6}}{{H}_{5}}ONa\]
  done clear
  C)
  \[{{C}_{6}}{{H}_{5}}-CH=CH-Br-C{{H}_{3}}-ONa\]
  done clear
  D)
  \[C{{H}_{2}}=CH-Br-{{C}_{6}}{{H}_{5}}-C{{H}_{2}}-ONa\]
  done clear
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• question_answer3) In a nucleophilic substitution reaction: \[R-Br+C{{l}^{-}}\xrightarrow[{}]{DMF}R-Cl+B{{r}^{-}},\]which one of the following undergoes complete inversion of configuration?   [JEE Main Online Paper ( Held On 09 Apirl  2014  )
  A)
  \[{{C}_{6}}{{H}_{5}}CH{{C}_{6}}{{H}_{5}}Br\]      
  done clear
  B)
  \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}Br\]
  done clear
  C)
  \[{{C}_{6}}{{H}_{5}}CHC{{H}_{3}}Br\]
  done clear
  D)
  \[{{C}_{6}}{{H}_{5}}CC{{H}_{3}}{{C}_{6}}{{H}_{5}}Br\]
  done clear
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• question_answer4) Which is major product formed when acetone is heated with iodine and potassium hydroxide?   [JEE Main Online Paper ( Held On 09 Apirl  2014  )
  A)
  Iodoacetone     
  done clear
  B)
  Acetic acid
  done clear
  C)
  Iodoform
  done clear
  D)
  Acetophenone
  done clear
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