A: `CH_(3)COONa` is an organometallic compound,
R:  `CH_(3)COONa`is organic compound and Na is transition metal.

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 and reason provided in the statement:

**Assertion (A):** CH₃COONa is an organometallic compound.
**Reason (R):** CH₃COONa is an organic compound and Na is a transition metal.

### Step-by-Step Solution:

1. **Understanding Organometallic Compounds:**
- Organometallic compounds are defined as compounds that contain a direct bond between a carbon atom of an organic molecule and a metal.
- Example: Compounds like Grignard reagents (RMgX) where R is an organic group and Mg is the metal.

2. **Analyzing the Assertion (A):**
- The compound CH₃COONa (sodium acetate) has the structure CH₃COO⁻Na⁺.
- In this structure, sodium (Na) is bonded to the acetate ion (CH₃COO⁻) through an ionic bond, not a direct bond to a carbon atom.
- Therefore, CH₃COONa does not meet the criteria for being an organometallic compound.
- **Conclusion:** The assertion is **false**.

3. **Analyzing the Reason (R):**
- CH₃COONa is indeed derived from acetic acid (CH₃COOH), which is an organic compound. Thus, CH₃COONa is classified as an organic compound because it is a sodium salt of acetic acid.
- However, the statement claims that sodium (Na) is a transition metal. This is incorrect because sodium is classified as an alkali metal (Group 1 of the periodic table) and not a transition metal.
- **Conclusion:** The reason is **partially true** (CH₃COONa is organic) but **false** regarding sodium being a transition metal.

4. **Final Evaluation:**
- Since the assertion is false and the reason is also false (due to the incorrect classification of sodium), both statements are incorrect.
- Therefore, the correct option is that both the assertion and reason are false.

### Final Answer:
The correct option is **Option 4: Both assertion and reason are false.**

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