To solve the question regarding the correct order of periodic properties of species, we will analyze each statement provided and determine their correctness based on periodic trends.1. Comparing the Sizes of Fe²⁺ and Fe³⁺:</
(1)BeH(2) lt CaH(2) lt TiH(2)Which of the following order are correct ? {:((a)TiH(2) lt BeH(2) lt CaH(2)-"Electrical conductance ",(b)LiH lt NaH lt CaH-"Ionic character",,,),((c)F-F- lt H-H lt D-D-"Bond dissociation enthalpy",(d)H(2)O lt MgH(2)lt NaH-