Both ionic and covalent bond present in

Options

A. `CH_(4)`
B. `NaCl`
C. `SO_(2)`
D. `KOH`

Answer

To determine which compound contains both ionic and covalent bonds, we can analyze each option step by step.

### Step 1: Analyze CH₄ (Methane)
- **Structure**: CH₄ has a tetrahedral structure.
- **Bond Type**: The bonds between carbon and hydrogen in CH₄ are covalent bonds.
- **Conclusion**: CH₄ contains only covalent bonds.

### Step 2: Analyze NaCl (Sodium Chloride)
- **Structure**: NaCl is formed by the transfer of an electron from sodium (Na) to chlorine (Cl).
- **Bond Type**: This electron transfer leads to the formation of Na⁺ and Cl⁻ ions, resulting in an ionic bond.
- **Conclusion**: NaCl contains only ionic bonds.

### Step 3: Analyze SO₂ (Sulfur Dioxide)
- **Structure**: SO₂ consists of sulfur and oxygen atoms.
- **Bond Type**: The bonds between sulfur and oxygen in SO₂ are covalent bonds.
- **Conclusion**: SO₂ contains only covalent bonds.

### Step 4: Analyze KOH (Potassium Hydroxide)
- **Structure**: KOH is composed of K⁺ ions and OH⁻ ions.
- **Bond Type**: The bond between potassium (K) and the hydroxide ion (OH) is ionic, while the bond within the hydroxide ion (between oxygen and hydrogen) is covalent.
- **Conclusion**: KOH contains both ionic and covalent bonds.

### Final Conclusion
- Among the given options, KOH is the only compound that contains both ionic and covalent bonds. Therefore, the correct answer is **Option D: KOH**.

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