Which of the following compounds shows ionic, covalent and co-ordinate bonds as well ?

Options

A. `CaSO_4. 5H_2 O `
B. `CuSO_4 . 5H_2O`
C. HCl
D. NaCl

Explanation

To determine which of the given compounds shows ionic, covalent, and coordinate bonds, we can analyze the bonding characteristics of each compound.

### Step-by-Step Solution:

1. **Identify the Compounds**: We need to analyze the compounds provided in the question. For this solution, we will focus on the compound mentioned in the video transcript, which is CuSO₄·5H₂O (Copper(II) sulfate pentahydrate).

2. **Analyze CuSO₄·5H₂O**:
- **Ionic Bonds**: CuSO₄ contains copper (Cu²⁺) ions and sulfate (SO₄²⁻) ions. The bond between these ions is ionic in nature due to the electrostatic attraction between the positively charged copper ions and the negatively charged sulfate ions.
- **Covalent Bonds**: Within the sulfate ion (SO₄²⁻), the sulfur atom is covalently bonded to the four oxygen atoms. These bonds involve the sharing of electrons, which characterizes covalent bonding.
- **Coordinate Bonds**: The water molecules (H₂O) in the compound can form coordinate bonds with the copper ion. In a coordinate bond, one atom provides both electrons for the bond. In this case, the oxygen atom of water donates a pair of electrons to the copper ion.

3. **Conclusion**: Since CuSO₄·5H₂O contains ionic bonds (between Cu²⁺ and SO₄²⁻), covalent bonds (within the sulfate ion), and coordinate bonds (between water molecules and the copper ion), it is the compound that exhibits all three types of bonding.

4. **Final Answer**: The compound that shows ionic, covalent, and coordinate bonds is **CuSO₄·5H₂O**.