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The maximum possible denticities of a ligand given below towards a common transition and inner-transition metal ion, respectively, are : N Θ OOC Θ OOC N N COO Θ COO Θ COO Θ

1. 6 and 6
2. 8 and 8
3. 8 and 6
4. 6 and 8

Correct answer: 6 and 8

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