Which statement is correct for ionic bond?
(a) It is non-directional .
(b) It is formed by overlapping of orbitals
(b) It is formed by overlapping of orbitals.
(c ) it is formed by the elements with same `EN`
(d) Both (a) and (b) are correct .

Answer

To determine which statement is correct for ionic bonds, let's analyze each option step by step.

### Step 1: Analyze Option (a)
**Statement:** It is non-directional.

- Ionic bonds are characterized by the electrostatic attraction between positively and negatively charged ions. In a crystal lattice, such as in sodium chloride (NaCl), each ion is surrounded by ions of opposite charge from all directions.
- This arrangement indicates that ionic bonds do not have a specific direction; they are uniform in all directions around the ion.

**Conclusion:** Option (a) is correct.

### Step 2: Analyze Option (b)
**Statement:** It is formed by overlapping of orbitals.

- Ionic bonds are not formed by the overlapping of orbitals. Instead, they are formed through the transfer of electrons from one atom (usually a metal) to another atom (usually a non-metal).
- Overlapping of orbitals is a characteristic of covalent bonds, where atoms share electrons.

**Conclusion:** Option (b) is incorrect.

### Step 3: Analyze Option (c)
**Statement:** It is formed by the elements with the same electronegativity.

- Ionic bonds typically form between elements with significantly different electronegativities, such as a metal and a non-metal. For example, sodium (Na) has low electronegativity and chlorine (Cl) has high electronegativity.
- When these elements react, sodium donates an electron to chlorine, resulting in the formation of Na+ and Cl- ions. Therefore, they do not have the same electronegativity.

**Conclusion:** Option (c) is incorrect.

### Step 4: Analyze Option (d)
**Statement:** Both (a) and (b) are correct.

- Since we have established that option (a) is correct and option (b) is incorrect, this statement cannot be true.

**Conclusion:** Option (d) is incorrect.

### Final Answer
The correct statement for ionic bonds is **(a) It is non-directional.**

---