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The number of paramagnetic complex among [ FeF ₆ ]³⁻, [ Fe ( CN )₆ ]³⁻, [ Mn ( CN )₆ ]³⁻, [ Co ( C ₂ O ₄ )₃ ]³⁻ , [ MnCl ₆ ]³⁻ and [ CoF ₆ ]³⁻ , which involved d ^2 sp ^3 hybridization is ____

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[ FeF ₆ ]³⁻ Paramagnetic sp ^3 ~d ^2 [ Fe ( CN )₆ ]³⁻ Paramagnetic d ^2 sp ^3 [ Mn ( CN )₆ ]³⁻ Paramagnetic d ^2 sp ^3 [ Co ( C ₂ O ₄ )₃ ]³⁻ Diamagnetic d ^2 sp ^3 [ MnCl ₆ ]³⁻ Paramagnetic sp ^3 ~d ^2 [ CoF ₆ ]³⁻ Paramagnetic sp ^3 ~d ^2 Only [ Fe ( CN )₆ ]³⁻ and [ Mn ( CN )₆ ]³⁻ are paramagnetic and d ^2 sp ^3 hybridisation of metal.

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