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Q.
The oxidation state $(n)$ and coordination number $(CN)$ of $Al$ and number of valence electrons around $Al ( N )$ in $Al _{2} Cl _{6}$ are respectively
TS EAMCET 2019
Solution:
Structure of $Al _{2} Cl _{6}$ is
Therefore,
(i) Oxidation state $(x)$ of ' $Al $ ' in $Al _{2} Cl _{6} :=2 x-6=0$ or $x=(+) 3$
(ii) Coordination number of $Al$ in $Al _{2} Cl _{6}$ is four $(4)$ , it is bonded to $4$ chlorine atoms in $Al _{2} Cl _{6}$.
(iii) Number of valence electrons around $Al$ in $Al _{2} Cl _{6}=2 \times 4=8$
