In the following questions, a statement of assertion (A) is followed by a statement of reason (R )
A : Each molecule of `H_(2)O` forms four H-bond in the form of ice.
R : ice is solid state of `H_(2)O`.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements , then mark (4).

Answer

To solve the question, we need to evaluate the assertion (A) and the reason (R) provided.

### Step 1: Analyze the Assertion (A)
The assertion states: "Each molecule of H2O forms four hydrogen bonds in the form of ice."

- **Understanding Hydrogen Bonding in Water:**
- A water molecule (H2O) consists of one oxygen atom and two hydrogen atoms.
- The oxygen atom has two lone pairs of electrons and is highly electronegative, which creates a partial negative charge on the oxygen and a partial positive charge on the hydrogen atoms.
- In ice, each water molecule can form hydrogen bonds with neighboring water molecules. Each oxygen atom can form two hydrogen bonds with the hydrogen atoms of other water molecules and can also accept two hydrogen bonds from the hydrogen atoms of other water molecules.

- **Conclusion for Assertion:**
- Therefore, each water molecule can indeed form a total of four hydrogen bonds in the solid state (ice). Thus, the assertion is **true**.

### Step 2: Analyze the Reason (R)
The reason states: "Ice is the solid state of H2O."

- **Understanding the Solid State of Water:**
- Ice is the solid form of water, which occurs when water freezes at 0°C (32°F) or below.
- In this solid state, water molecules are arranged in a crystalline structure, held together by hydrogen bonds.

- **Conclusion for Reason:**
- The statement that "ice is the solid state of H2O" is also **true**.

### Step 3: Determine the Relationship Between A and R
- Both the assertion and the reason are true.
- However, the reason does not explain why each molecule of H2O forms four hydrogen bonds; it merely states what ice is.

### Final Conclusion
- Since both statements are true, but the reason does not correctly explain the assertion, the correct option is:
- **Option 2**: Both assertion and reason are true, but the reason is not the correct explanation of the assertion.