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Transition metal complex with highest value of crystal field splitting ( Δ 0) will be

1. [Cr(H 2 O) 6 ] 3+
2. [Mo(H 2 O) 6 ] 3+
3. [Fe(H 2 O) 6 ] 3+
4. [Os(H 2 O) 6 ] 3+

Correct answer: [Os(H 2 O) 6 ] 3+

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