AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

Since we know that, more is the bond order of any species, shorter will be its bond length and hence, stronger will be the bond.

‌	N2	>	O2	>	F2
Bond‌order	3	‌	2	‌	1

As bond length is reverse of bond order, therefore, the correct order of bond length will be:
F2>O2>N2
The order of dissociation energy is as follows:
N2>O2>F2