The stereochemical structures of the two geometric isomers of the complex ion [Cr(C2O4)2(H2O)2]−[\text{Cr}(\text{C}_2\text{O}_4)_2(\text{H}_2\text{O})_2]^-[Cr(C2O4)2(H2O)2]− are shown below:
![Isomers of [\text{Cr}(\text{C}_2\text{O}_4)_2(\text{H}_2\text{O})_2]^-](/_next/image?url=https%3A%2F%2Fassets.mathsgenie.co.uk%2Faqa-qb%2F7e50411f-9b22-4b7a-9feb-3143dc0afa87.png&w=3840&q=75)
Which statement(s) is/are correct for this complex ion?
- It exhibits both geometric and optical isomerism.
- The central chromium ion has a coordination number of 6, resulting in an octahedral shape with ideal bond angles of 90∘ 90^\circ\,90∘ and 180∘180^\circ180∘.
- The trans-isomer is chiral and can be resolved into a pair of enantiomers.
1, 2 and 3
Only 1 and 2
Only 2 and 3
Only 1