For the square planar complex `[Pt(NH_(3))_(4)(NH_(2)OH)py(No_(2))]^(o+)` how many geometrical isomers are possible .

Explanation

To determine the number of geometrical isomers for the square planar complex \([Pt(NH_3)_4(NH_2OH)(py)(NO_2)]^{o+}\), we will analyze the ligands and their arrangements around the platinum metal center.

### Step-by-Step Solution:

**Step 1: Identify the Ligands**
- The complex has the following ligands:
- 4 Ammonia (NH₃) ligands
- 1 Hydroxylamine (NH₂OH) ligand
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