Which of the following are not ionic compounds ?
(I) `AlCl_(3)`
(II) `HCl`
(III) `C Cl_(4)`
(IV) NaCl

Options

A. (I) and (II)
B. (II) and (III)
C. (III) and (IV)
D. (I) and (III)

Explanation

To determine which of the given compounds are not ionic compounds, we need to analyze each one based on their bonding characteristics.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- (I) `AlCl₃`
- (II) `HCl`
- (III) `CCl₄`
- (IV) `NaCl`

2. **Analyze Each Compound**:
- **(I) `AlCl₃`**:
- Aluminum (Al) is a metal and chlorine (Cl) is a non-metal.
- Aluminum has 3 valence electrons and chlorine has 7 valence electrons.
- Aluminum donates its 3 electrons to 3 chlorine atoms, forming an ionic bond.
- **Conclusion**: `AlCl₃` is an ionic compound.

- **(II) `HCl`**:
- Hydrogen (H) is a non-metal and chlorine (Cl) is also a non-metal.
- They share one electron to form a bond.
- This type of bonding is called covalent bonding.
- **Conclusion**: `HCl` is not an ionic compound.

- **(III) `CCl₄`**:
- Carbon (C) is a non-metal and chlorine (Cl) is also a non-metal.
- Carbon shares its 4 valence electrons with 4 chlorine atoms, forming covalent bonds.
- **Conclusion**: `CCl₄` is not an ionic compound.

- **(IV) `NaCl`**:
- Sodium (Na) is a metal and chlorine (Cl) is a non-metal.
- Sodium donates its 1 electron to chlorine, forming an ionic bond.
- **Conclusion**: `NaCl` is an ionic compound.

3. **Final Conclusion**:
- The compounds that are **not ionic compounds** are:
- (II) `HCl`
- (III) `CCl₄`

### Answer:
The compounds that are not ionic compounds are **(II) `HCl` and (III) `CCl₄`**.

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