Q.The crystal field splitting energy ( $\Delta_o$ ) for $[CoCl_6]^{3-}$ is $18000 \text{ cm}^{-1}$ . The pairing energy is $21000 \text{ cm}^{-1}$ . The complex is:

Low spin

High spin

Diamagnetic

Square planar

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Q.The crystal field splitting energy (Δo\Delta_oΔo​) for [CoCl6]3−[CoCl_6]^{3-}[CoCl6​]3− is 18000 cm−118000 \text{ cm}^{-1}18000 cm−1. The pairing energy is 21000 cm−121000 \text{ cm}^{-1}21000 cm−1. The complex is: