Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Exam: NET JUNE 2019 · Marks: 2 · Difficulty: Medium
$\mathrm{FeCr}_{2} \mathrm{O}_{4}$ and $\mathrm{NiGa}_{2} \mathrm{O}_{4}$ have normal and inverse spinel structures, respectively. The correct statement is
(a)Fe(II) and Ni(II) occupy octahedral sites
(b)Fe (II) and Ni(II) occupy tetrahedral and octahedral sites, respectively
(c)Cr(III) and Ga(III) occupy only octahedral sites
(d)Cr(III) and Ga(III) occupy tetrahedral and octahedral sites, respectively