The INCORRECT statement is :

Question

the color of [CoCl(NH₃)₅]²⁺ is violet as it absorbs the yellow light.

the gemstone, ruby, has Cr³⁺ ions occupying the octahedral sites of beryl.

the spin-only magnetic moment of [Ni(NH₃)₄(H₂O)₂]²⁺ is 2.83 BM.

the spin-only magnetic moments of [Fe(H₂O)₆]²⁺ and [Cr(H₂O)₆]²⁺ are nearly similar.

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