Which is false about ice?

Options

A. It has open cage-like structure.
B. it has more density than water.
C. Each `O` atom is surrounded by four `H` atoms
D. Each `O` atom has four `H`-bonds around it.

Answer

To determine which statement about ice is false, we will analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "It has an open cage-like structure."
- Ice has a crystalline structure where water molecules are arranged in a hexagonal lattice, which can be described as an open cage-like structure. This statement is **true**.

2. **Statement 2**: "It has more density than water."
- Ice is less dense than liquid water due to the hydrogen bonding that causes the molecules to be spaced further apart in the solid state. Therefore, this statement is **false**.

3. **Statement 3**: "Each oxygen atom is surrounded by four hydrogen atoms."
- In the structure of ice, each oxygen atom is bonded to two hydrogen atoms through covalent bonds and forms hydrogen bonds with two other water molecules. Thus, this statement is **false**.

4. **Statement 4**: "Each oxygen atom has four hydrogen bonds around it."
- Each oxygen atom in ice forms two hydrogen bonds with neighboring water molecules, not four. Therefore, this statement is also **false**.

### Conclusion:
The false statements regarding ice are:
- It has more density than water (Statement 2).
- Each oxygen atom is surrounded by four hydrogen atoms (Statement 3).
- Each oxygen atom has four hydrogen bonds around it (Statement 4).

### Final Answer:
The false statements are:
- It has more density than water.
- Each oxygen atom is surrounded by four hydrogen atoms.
- Each oxygen atom has four hydrogen bonds around it.