Consider the hydrated ions of Ti²⁺, V²⁺, Ti3+, and Sc³⁺. The correct order of their spin-only magnetic moments is :
(1) Sc³⁺ < Ti³⁺ < V²⁺ < Ti²⁺
(2) Sc³⁺ < Ti³⁺ < Ti²⁺ < V²⁺
(3) Ti³⁺ < Ti²⁺ < Sc³⁺ < V²⁺
(4) V²⁺ < Ti²⁺ < Ti³⁺ < Sc³⁺