Paramagnetic susceptibility of the order of 10⁻⁶ cm³ mol⁻¹ observed for KMnO₄ is due to- · ABC26IN0121
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Magnetism · Exam: CSIR NET 2016 · Marks: 2 · Difficulty: Hard
Paramagnetic susceptibility of the order of $10^{-6}\,\mathrm{cm^{3}\,mol^{-1}}$ observed for $\mathrm{KMnO_4}$ is due to-
(a)random spin alignment
(c)paramagnetic impurity
(b)antiferromagnetic exchange interaction
(d)temperature independent paramagnetism
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
MnO₄⁻ (d⁰) shows weak temperature-independent paramagnetism from mixing of low-lying excited states (d).
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