If `B-Cl` bond has a dipole moment, explain why `BCl_(3)` molecule has zero dipole moment.

Explanation

To understand why the B-Cl bond has a dipole moment, but the BCl₃ molecule has a zero dipole moment, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Understanding Dipole Moment**:
- A dipole moment occurs due to the difference in electronegativity between two atoms in a bond. In the case of the B-Cl bond, chlorine is more electronegative than boron, resulting in a dipole moment that points from chlorine (δ-) to boron (δ+).

2. **Structure of BCl₃**:
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