Arrange the following metal complex/compounds in the increasing order of spin only magnetic moment. Presume all the three, high spin system.
(Atomic numbers Ce = 58, Gd = 64 and Eu = 63)
(a) (NH₄)₂[Ce(NO₃)₆]
(b) Gd(NO₃)₃ and
(c) Eu(NO₃)₃
JEE Main 2021 · 16 Mar, Evening shift · Q824