Chemistry · Classification of Elements and Periodicity in Properties

What is the oxidation state and covalency of aluminium in \( [\text{AlCl}(\text{H}_2\text{O})_5]^{2+} \)?

1. A
   Oxidation state = +3, Covalency = 6
2. B
   Oxidation state = +3, Covalency = 4
3. C
   Oxidation state = +2, Covalency = 6
4. D
   Oxidation state = +3, Covalency = 5