When electrons are contributed by one atom but shared by both the atoms so as to complete their octets, the bond formed is called

Options

A. covalent bond
B. ionic bond
C. dative bond
D. both (a) and (b)

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about a type of bond formed when one atom contributes electrons that are shared by both atoms to complete their octets.

2. **Identifying Bond Types**:
- **Covalent Bond**: This bond is formed when two atoms share electrons equally. In this case, both atoms contribute electrons.
- **Ionic Bond**: This bond is formed when one atom transfers electrons to another atom, resulting in the formation of charged ions that attract each other.
- **Dative Bond (Coordinate Bond)**: This bond is formed when one atom donates both electrons to be shared with another atom that does not contribute any electrons.

3. **Analyzing the Given Information**: The question specifies that the electrons are contributed by one atom but shared by both. This clearly indicates a scenario where one atom is donating both electrons for sharing.

4. **Conclusion**: Based on the analysis, the bond formed in this scenario is a **Dative Bond** (or Coordinate Bond), where one atom provides both electrons for the bond while the other atom accepts them.

5. **Final Answer**: The bond formed is called a **Dative Bond**.

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