Among [I3] + , [SiO4]4-, SO2Cl2, XeF2, SF4, ClF3, Ni(CO)4, XeO2F2, [PtCl4] 2−, XeF4, and SOCl2, the total number of species having sp3 hybridised central atom is ______.
The following circuit contains diodes with forward bias having resistance \(25Ω\), and reverse bias having infinite resistance. The ratio of \(\frac{I_{1}}{I_{2}}\) is equal to