The type of bonding in HCI molecule is 

Options

A. Pure covalent
B. Polar covalent
C. Highly polar
D. H-bonding

Answer

### Step-by-Step Solution:

1. **Understanding the Composition of HCl**:
- HCl is composed of hydrogen (H) and chlorine (Cl) atoms.

2. **Identifying the Type of Bonding**:
- To determine the type of bonding in HCl, we need to analyze how the atoms interact with each other.

3. **Electron Sharing**:
- In HCl, the hydrogen atom shares one of its electrons with the chlorine atom. This sharing of electrons is characteristic of covalent bonding.

4. **Electronegativity Consideration**:
- Electronegativity is a measure of an atom's ability to attract and hold onto electrons.
- Chlorine is more electronegative than hydrogen, which means it has a stronger tendency to attract electrons.

5. **Partial Charges**:
- Due to the difference in electronegativity, the shared electrons are pulled closer to the chlorine atom.
- This results in the hydrogen atom acquiring a partial positive charge (δ+) and the chlorine atom acquiring a partial negative charge (δ-).

6. **Conclusion on Bond Type**:
- Since there is an unequal sharing of electrons due to the difference in electronegativity, the bond in HCl is classified as a **polar covalent bond**.

### Final Answer:
The type of bonding in HCl molecule is **polar covalent**.

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