In a complex compound, the central metal ion | vedclass

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(C) $1$. In a coordination complex, the central metal ion has vacant orbitals.$2$. Ligands donate a pair of electrons to these vacant orbitals to form

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Lewis acid

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(C) $1$. In a coordination complex, the central metal ion has vacant orbitals.$2$. Ligands donate a pair of electrons to these vacant orbitals to form coordinate covalent bonds.$3$. According to the Lewis theory, an electron pair acceptor is defined as a Lewis acid.$4$. Since the central metal ion accepts electron pairs from ligands, it acts as a Lewis acid.

In a complex compound, the central metal ion acts as a:

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