What is the strongest IMF (london forces, dipole, hydrogen, metallic, ionic, covalent)?

Kr, F2, C3H8, XeF4, C6H6, NO, H2SO4, WC, Si, SiO2, C (graphite), N2, Ag, (C2H5)2NH, NAOH, He, Na,CO, Ar, Ba(OH)2, O2, NH4Cl, Hg, P4, HCN, CaO, N2H2, H2, Pb, XeF2, SF4, SiC, Si4H10, PH3, SiH4, H2Se, C2H2, I2, Cu, AsH3, K2S