`KF` combines with `HF` to form `KHF_(2)` The compound contains the species .

Options

A. `K^(o+),F^(Θ)` and `H^(o+)`
B. `K^(o+),F^(Θ)` and `HF`
C. `K^(o+)` and `[HF_(2)]^(Θ)`
D. `[KHF]^(o+)` and `F_(2)`

Explanation

To solve the question regarding the compound KHF₂ and the species it contains, we will follow these steps:

### Step 1: Identify the components of KHF₂
KHF₂ is formed from the combination of KF and HF. In this compound, we need to identify the ions and molecules present.

### Step 2: Determine the ions in KF
KF (potassium fluoride) dissociates into potassium ions (K⁺) and fluoride ions (F⁻) in solution.

### Step 3: Analyze HF
HF (hydrofluoric acid) can exist as HF molecules in solution. It can also donate a proton (H⁺) to form the fluoride ion (F⁻) and a hydronium ion (H₃O⁺) in a more complex equilibrium.

### Step 4: Combine KF and HF
When KF combines with HF, the potassium ion (K⁺) remains as it is, while the fluoride ion (F⁻) from KF interacts with the HF molecule. The interaction results in the formation of a stable species, which is the bifluoride ion (HF₂⁻).

### Step 5: Write the final composition of KHF₂
Thus, KHF₂ contains:
- K⁺ (from KF)
- HF₂⁻ (which is formed from the interaction of HF and F⁻)

### Conclusion
The compound KHF₂ contains the species K⁺, F⁻, and HF₂⁻.

### Final Answer
The compound KHF₂ contains the species: K⁺, F⁻, and HF₂⁻.

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