Solved papers for JEE Main & Advanced AIEEE Solved Paper-2009

done AIEEE Solved Paper-2009 Total Questions - 1

• question_answer1) The bond dissociation energy of\[BF\]in\[B{{F}_{3}}\]is\[646\text{ }kJ\text{ }mo{{l}^{1}}\] whereas that of\[CF\]in\[C{{F}_{4}}\]is\[515\text{ }kJ\text{ }mo{{l}^{1}}.\] The correct reason for higher\[B-F\]bond dissociation energy as compared to that of\[CF\]is:     AIEEE  Solved  Paper-2009
  A)
  smaller size of B - atom as compared to that of C - atom
  done clear
  B)
  stronger\[\sigma \]bond between B and F in\[B{{F}_{3}}\]as compared to that between C and F in\[C{{F}_{4}}\]
  done clear
  C)
  significant\[p\pi -p\pi \]interaction between B and F in\[B{{F}_{3}}\]whreas there is no possibility of such interaction between C and F in\[C{{F}_{4}}\]
  done clear
  D)
  lower degree of \[p\pi -p\pi \] interaction between B and F in\[B{{F}_{3}}\]than that between C and F in\[C{{F}_{4}}\]
  done clear
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