Draw the structure of optical isomers of
(i) `[PtCl_(2)] (en)_(2)]^(2+)`
(ii). `[Cr(NH_(3))_2 Cl_(2)(en)]^(+)`

Explanation

To solve the problem of drawing the optical isomers of the given coordination compounds, we will follow a systematic approach for each compound.

### (i) For the compound `[PtCl₂(en)₂]^(2+)`:

1. **Identify the Coordination Geometry**:
- Platinum (Pt) typically has a coordination number of 4 in square planar geometry when it forms complexes with ligands like chloride (Cl) and ethylenediamine (en).

2. **Draw the Geometrical Isomer**:
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