હેલોજન અણુઓની બંધ વિયોજન ઊર્જા માટે નીચેના પૈકી કયો ક્રમ સાચો છે ?
NEET 2016, Medium
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d $\mathrm{Cl}_{2}>\mathrm{Br}_{2}>\mathrm{F}_{2}>\mathrm{I}_{2}$
Bond dissociation energy of $F_{2}$ less than $C l_{2}$ and $B r_{2}$ because small size of atom result in strong lone pair repulsion.
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