Proceeding towards the conductance calculations, the transport characteristics of acenes with increasing length have been examined by numerous theoretical reports, while the effect of spin polarized nature of higher acenes on the electron transport has been rarely considered. Assuming the non-magnetic ground state, Visontai et al. found that conductance of the acene series is an oscillatory function of length due to quantum interference (QI) effects. In an experimental study, Kaliginedi et al. observed an exponential decay of conductance for lower acenes with positive β value. While a recent computational study by valdiviezo et al. claimed that acenes with meta connection to electrodes exhibits reversed exponential decay of conductance with length. Thus, the length dependence of conductance for acenes has remained a persistent puzzle.