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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
The bond dissociation energy is highest for
  • A
    $Cl _2$
  • B
    $I _2$
  • C
    $Br _2$
  • D
    $F_2$
✓

Answer

Bond energy of $F _2$ less than $Cl _2$ due to lone pair lone pair repulsions.

Bond energy order $Cl _2 > Br _2 > F _2 > I _2$

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