Match the items given in Column 1 with examples give in Column II.
`{:("Column I","Column II"),((a)"Hydrogen bond",(i)C),((b)"Resonance",(ii)LiF),((c)"Ionic solid",(iii)H_(2)),((d)"Covalent solid",(iv)HF),(,(v)O_(3)):}`

Answer

To solve the problem of matching items from Column I with examples in Column II, we will analyze each item in Column I and find the corresponding example in Column II.

### Step-by-Step Solution:

1. **Identify Hydrogen Bond:**
- A hydrogen bond is formed when hydrogen is bonded to a highly electronegative atom (like oxygen, nitrogen, or fluorine) and interacts with another electronegative atom.
- **Example from Column II:** HF (Hydrogen Fluoride) is known to form hydrogen bonds due to the presence of fluorine, which is highly electronegative.
- **Match:** (a) Hydrogen bond → (iv) HF

2. **Identify Resonance:**
- Resonance occurs when a molecule can be represented by two or more valid Lewis structures. Ozone (O3) is a classic example where the double bond can shift between the two oxygen atoms.
- **Example from Column II:** O3 (Ozone) has multiple resonance structures.
- **Match:** (b) Resonance → (v) O3

3. **Identify Ionic Solid:**
- An ionic solid is formed from the electrostatic attraction between ions, typically between a metal and a non-metal.
- **Example from Column II:** LiF (Lithium Fluoride) is formed from lithium (a metal) and fluorine (a non-metal), making it an ionic compound.
- **Match:** (c) Ionic solid → (ii) LiF

4. **Identify Covalent Solid:**
- Covalent solids consist of atoms connected by covalent bonds in a network. Carbon in its diamond form is a prime example of a covalent solid.
- **Example from Column II:** C (Carbon) represents covalent solids like diamond and graphite.
- **Match:** (d) Covalent solid → (i) C

### Final Matches:
- (a) Hydrogen bond → (iv) HF
- (b) Resonance → (v) O3
- (c) Ionic solid → (ii) LiF
- (d) Covalent solid → (i) C

### Summary of Matches:
- A → iv
- B → v
- C → ii
- D → i