If the equivalent conductivitios of Fe and \( SO ^{2}{ }^{2} \) ions is \( 68 Som ^{2} co ^{-1} \) and \( 80.8 cm^{2} \) eq respectively. The mokar somducance of Ferso mis
(i) \( \left\{48.5 cm^{2}\right. \) mol
(2) \( 445 Som ^{2} mos \)
(3) \( 388 Scm ^{2} \) mol \( { }^{-1} \)
(4) \( 5925 cm^{2} nol \)