Silica gel, the most commonly used stationary phase, has the empirical formula SiO2. However, at the surface of the silica gel particles, the dangling oxygen atoms are bound to protons. The presence of these hydroxyl groups renders the surface of silica gel highly polar.Click to see full answer. Thereof, is SiO2 polar? Re: SiO2 Polar or Nonpolar SiO2 has a linear shape, and since the elements at each end are the same, the pull is canceled out, making the overall compound non-polar.Furthermore, is Silicon polar or nonpolar? Silicon tetrachloride is non-polar because the four chemical bonds between silicon and chlorine are equally distributed. Accordingly, is SiO2 dipole dipole? II) SiO2 is a covalent network solid so the entire structure of one macromolecule is held together with strong covalent bonds. NF3 is held together with dipole dipole forces and they are much weaker than covalent bonds, less energy is required to sever those IMFs.What kind of bond is SiO2?Originally Answered: Is SIO2 ionic or covalent bond, and why? The bonding is silicon dioxide is COVALENT and electron-precise…but it is NON-MOLECULAR, and thus silicon dioxide is a high-melting, crystalline solid.