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Q. The covalency of $Al$ in $\left[ AlCl \left( H _{2} O \right)_{5}\right]^{2+}$ is

TS EAMCET 2018

Solution:

Covalency is the number of bonds formed by central metal atom with ligands. In $\left[ AlCl \left( H _{2} O \right)_{5}\right]^{+2}$, $Al$ central metal atom is bonded by coordination bond with one chlorine and $5$ water molecules. So, covalency is $6 .$