The correct order of bond angle is BeCl2>BF3>SiCl4>SF6 In SF6, the molecule geometry is octahedral where bond angle is 90∘. In SiCl4, the geometry is tetrahedral and the bond angle is 109.5∘. In BF3, the geometry is trigonal planar where bond angle is 120∘. In BeCl2, the geometry is linear and bond angle is 180∘