The correct spinel structure of Co₃ O₄ is: · ABC26IN1017
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Exam: CSIR NET DEC 2012 · Marks: 2 · Difficulty: Easy
The correct spinel structure of $\mathrm{Co}_{3} \mathrm{O}_{4}$ is:
(a)$(\mathrm{Co}^{2+})$ t $(2\mathrm{Co}^{3+})$ o $\mathrm{O}_{4}$
(b)$(\mathrm{Co}^{2+})$ t $(2\mathrm{Co}^{3+}\mathrm{Co}^{3+})$ o $\mathrm{O}_{4}$
(c)$(\mathrm{Co}^{2+}\mathrm{Co}^{3+})$ t $(\mathrm{Co}^{3+})$ o $\mathrm{O}_{4}$
(d)$(2\mathrm{Co}^{3+})$ t $(\mathrm{Co}^{2+})$ o $\mathrm{O}_{4}$
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Co₃O₄ is normal: Co²⁺ tetrahedral, 2Co³⁺ octahedral (a).
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