Assertion : The molecular weight of oxygen is 32 amu.
Reason : The atomic weight of oxygen is 16 amu

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
C. If Assertion is true statement but Reason is false.
D. If both Assertion and Reason are false statements.

Answer

To solve the assertion and reason question, we need to analyze both statements provided:

**Assertion:** The molecular weight of oxygen is 32 amu.
**Reason:** The atomic weight of oxygen is 16 amu.

### Step-by-Step Solution:

1. **Understanding Molecular Weight:**
- The molecular weight of a substance is the sum of the atomic weights of all the atoms in a molecule.
- For molecular oxygen (O₂), it consists of two oxygen atoms.

2. **Finding the Atomic Weight of Oxygen:**
- The atomic weight of a single oxygen atom is given as 16 amu.

3. **Calculating the Molecular Weight of O₂:**
- Since O₂ consists of two oxygen atoms, we can calculate its molecular weight as follows:
\[ \text{Molecular weight of O₂} = 2 \times \text{Atomic weight of O} = 2 \times 16 \text{ amu} = 32 \text{ amu} \]

4. **Evaluating the Assertion:**
- The assertion states that the molecular weight of oxygen is 32 amu, which we have confirmed through our calculation.

5. **Evaluating the Reason:**
- The reason states that the atomic weight of oxygen is 16 amu, which is also true.

6. **Conclusion:**
- Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

### Final Answer:
Both the assertion and reason are true, and the reason is the correct explanation of the assertion.

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