The d - orbital involved in `dsp^(2)` hybridisation si `d_(x^(2)-y^(2))`.

Explanation

To determine whether the statement "The d-orbital involved in `dsp^(2)` hybridization is `d_(x^(2)-y^(2))`" is correct, we will analyze the concept of `dsp^(2)` hybridization and the specific d-orbitals involved.

### Step-by-Step Solution:

1. **Understanding `dsp^(2)` Hybridization**:
- `dsp^(2)` hybridization occurs when one d-orbital, one s-orbital, and two p-orbitals mix to form four equivalent hybrid orbitals.
- This type of hybridization typically leads to a square planar geometry.

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