According to octet rule the compound which contain ioinc, covalent and coordinate bonds

Options

A. `CaSO_(4)`
B. `NH_(4)`Cl
C. `NaNO_(3)`
D. All of these

Answer

To solve the question regarding which compound contains ionic, covalent, and coordinate bonds according to the octet rule, we will analyze each given option step by step.

### Step 1: Understand the Types of Bonds
- **Ionic Bond**: Formed when there is a complete transfer of electrons from one atom to another, resulting in charged ions.
- **Covalent Bond**: Formed when two atoms share one or more pairs of electrons.
- **Coordinate Bond**: A type of covalent bond where one atom donates both electrons to the bond.

### Step 2: Analyze Each Compound

#### Option A: CaSO4 (Calcium Sulfate)
1. **Ionic Bond**: Calcium (Ca) loses two electrons to become Ca²⁺, and the sulfate ion (SO₄²⁻) accepts these electrons, forming an ionic bond.
2. **Covalent Bond**: Within the sulfate ion, the sulfur atom shares electrons with the oxygen atoms, forming covalent bonds.
3. **Coordinate Bond**: In the sulfate ion, one of the oxygen atoms can donate a lone pair to form a coordinate bond with another atom if needed.

**Conclusion**: CaSO4 contains ionic, covalent, and coordinate bonds.

#### Option B: NH4Cl (Ammonium Chloride)
1. **Ionic Bond**: Ammonium ion (NH₄⁺) and chloride ion (Cl⁻) form an ionic bond.
2. **Covalent Bond**: Within the ammonium ion, nitrogen shares electrons with hydrogen atoms, forming covalent bonds.
3. **Coordinate Bond**: The nitrogen atom donates a lone pair to form the NH₄⁺ ion, which can be considered a coordinate bond.

**Conclusion**: NH4Cl contains ionic, covalent, and coordinate bonds.

#### Option C: NaNO3 (Sodium Nitrate)
1. **Ionic Bond**: Sodium (Na) loses one electron to become Na⁺, and the nitrate ion (NO₃⁻) accepts this electron, forming an ionic bond.
2. **Covalent Bond**: Within the nitrate ion, nitrogen shares electrons with the oxygen atoms, forming covalent bonds.
3. **Coordinate Bond**: The nitrogen in the nitrate ion can be seen as having coordinate bonding characteristics with one of the oxygen atoms.

**Conclusion**: NaNO3 contains ionic, covalent, and coordinate bonds.

### Step 3: Final Conclusion
Since all three compounds (CaSO4, NH4Cl, NaNO3) contain ionic, covalent, and coordinate bonds, the correct answer is **Option D: All of these**.