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 assertion-reason question, we will analyze both the assertion (A) and the reason (R) step by step.

### Step 1: Analyze the Assertion (A)
- **Assertion (A)**: Each molecule of H₂O forms four H-bonds in the form of ice.
- **Analysis**:
- A water molecule (H₂O) has two hydrogen atoms and two lone pairs of electrons on the oxygen atom.
- In ice, each water molecule can form hydrogen bonds with four neighboring water molecules.
- The two hydrogen atoms of one water molecule can bond with the lone pairs of two neighboring water molecules, while the two lone pairs of the oxygen atom can bond with the hydrogen atoms of two other neighboring water molecules.
- Therefore, it is correct to say that each water molecule in ice forms four hydrogen bonds.

### Conclusion for Assertion (A):
- The assertion is **True**.

### Step 2: Analyze the Reason (R)
- **Reason (R)**: Ice is the solid state of H₂O.
- **Analysis**:
- Ice is indeed the solid form of water (H₂O).
- This statement is factually correct, as ice is the crystalline structure that water takes when it freezes.

### Conclusion for Reason (R):
- The reason is **True**.

### Step 3: Determine the Relationship Between A and R
- The assertion is true, and the reason is also true. However, we need to check if the reason correctly explains the assertion.
- The reason states that ice is the solid state of H₂O, but it does not explain why each molecule of H₂O forms four hydrogen bonds. The formation of hydrogen bonds is due to the molecular structure and the presence of lone pairs, not merely because ice is the solid state of water.

### Final Conclusion:
- Assertion (A) is **True**.
- Reason (R) is **True**, but it does not provide the correct explanation for assertion (A).
- Therefore, the correct answer is that both statements are true, but R is not the correct explanation for A.