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  4. The co-ordination number of a central metal atom in a complex is determined by

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Q. The co-ordination number of a central metal atom in a complex is determined by

NTA AbhyasNTA Abhyas 2020Coordination Compounds

Solution:

Co-ordination number is the maximum covalency shown by a metal or metal ion. It is the maximum number of ligands attached to metal by sigma bonds or co-ordinate bonds.

$\left[ Al \left( H _{2} O \right)_{6}\right]^{+3} \cdot 3 Cl ^{-}$ it has co-ordination number 6.