In ice, the length of H-bonds :

Options

A. is less than that of covalent bonds
B. is greater than that of covalent bonds
C. is same as that of covalent bonds
D. can be less greater or same as that of covalent bonds

Answer

To determine the length of hydrogen bonds in ice compared to covalent bonds, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of Ice**:
- Ice is a solid form of water (H₂O) where water molecules are arranged in a specific structure due to hydrogen bonding. Each water molecule can form hydrogen bonds with neighboring water molecules.

2. **Identifying Bond Types**:
- In ice, there are two types of bonds to consider:
- **Covalent Bonds**: These are the bonds between the hydrogen and oxygen atoms within a single water molecule (O-H bonds).
- **Hydrogen Bonds**: These are the intermolecular forces between different water molecules, where a hydrogen atom of one water molecule is attracted to the oxygen atom of another water molecule.

3. **Comparing Bond Strengths**:
- Covalent bonds (O-H) are generally much stronger than hydrogen bonds. This is a crucial point because bond strength is inversely related to bond length.

4. **Understanding Bond Length**:
- Since bond length is inversely proportional to bond strength, stronger bonds (covalent bonds) will have shorter lengths compared to weaker bonds (hydrogen bonds).

5. **Conclusion**:
- Given that covalent bonds are stronger than hydrogen bonds, we conclude that the length of hydrogen bonds in ice is greater than the length of covalent bonds. Therefore, the correct answer is that the length of hydrogen bonds is greater than that of covalent bonds.

### Final Answer:
The length of hydrogen bonds in ice is greater than that of covalent bonds. Thus, the correct option is **B**.

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