NEET-XII-Chemistry
exam-1 year:2016
- #66Which one of the following orders is correct for the
bond dissociation enthalpy of halogen molecules?
(1) ``\ce {I2 > Br2 > Cl2 > F2}``
(2) ``\ce {Cl2 > Br2 > F2 > I2}``
(3) ``\ce Br2 > I2 > F2 > Cl2}``
(4)``\ce { F2 > Cl2 > Br2 > I2}``digAnsr: 2Ans : (2)
Sol. C2 > Br2 > F2 > I2
due to high p-p repulsion