The set having ions which are coloured and paramagnetic both is :

Question

Cu²⁺, Cr³⁺, Sc⁺

Cu²⁺, Zn²⁺, Mn⁴⁺

Sc³⁺, V⁵⁺, Ti⁴⁺

Ni²⁺, Mn⁷⁺, Hg²⁺

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