# Atomic number of Mn, Fe, Co and Ni are 25, 26 27 and 28 respectively. Which of the following outer orbital

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Atomic number of Mn, Fe, Co and Ni are 25, 26 27 and 28 respectively. Which of the following outer orbital octahedral complexes have same number of unpaired electrons?

(i) [MnCl6]3–

(ii) [FeF6]3–

(iii) [CoF6]3–

(iv) [Ni(NH3)6]2+

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(i), (iii)

(i) [MnCl6]3–

(iii) [CoF6]3–

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