The pair in which both the species have the same magnetic moment (spin only) is :

Question

[Cr(H₂O)₆]²⁺ and [CoCl₄]^2–

[Co(OH)₄]^2– and [Fe(NH₃)₆]²⁺

[Mn(H₂O)₆]²⁺ and [Cr(H₂O)]²⁺

[Cr(H₂O)₆]²⁺ and [Fe(H₂O)₆]²⁺

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