The correct option is : (d) NO2+
Explanation:
NO2- : Due to sp2 hybridisation of N-atom and the presence of one lone pair or it, NO2- has angular shape.
SO2 : Due to the presence- of one lone pair of electros in one of the three sp2-hybrid orbitals and, sp2 hybridisation of S or S+ atom, SO2 molecule has angular (V-shaped) structure.
NO2+ : Due to sp hybridisation of N+, NO2+ ion has linear shape.
