Arrange following complex ions in increasing order of crystal field splitting energy `(Delta_(0))` :
`[Cr(Cl)_(6)]^(3-),[Cr(CN)_(6)]^(3-),[Cr(NH_(3))_(6)]^(3+)`

Explanation

To arrange the complex ions `[Cr(Cl)_(6)]^(3-)`, `[Cr(CN)_(6)]^(3-)`, and `[Cr(NH_(3))_(6)]^(3+)` in increasing order of crystal field splitting energy `(Δ₀)`, we need to consider the nature of the ligands involved and their position in the spectrochemical series.

### Step-by-Step Solution:

1. **Identify the Ligands and Their Strengths**:
- The ligands present in the complexes are:
- Chloride ion (Cl⁻)
- Cyanide ion (CN⁻)
...