When cyclohexanone is treated with `Na_(2)CO_(3)` soln, we get

Options

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Explanation

To solve the question "When cyclohexanone is treated with Na₂CO₃ solution, we get:", we will follow these steps:

### Step 1: Identify the Reactants
Cyclohexanone is a ketone with the formula C₆H₁₀O. When treated with Na₂CO₃, which is a dilute base, we need to consider the type of reaction that can occur.

**Hint:** Look for the functional groups present in cyclohexanone and the properties of Na₂CO₃.

### Step 2: Understand the Role of Na₂CO₃
Na₂CO₃ acts as a weak base. In the presence of a weak base, cyclohexanone can undergo an aldol reaction. This reaction involves the formation of an enolate ion from the carbonyl compound.

**Hint:** Recall that aldol reactions involve the formation of enolates from carbonyl compounds.

### Step 3: Formation of the Enolate Ion
When cyclohexanone is treated with Na₂CO₃, the base abstracts an acidic hydrogen from the alpha carbon of cyclohexanone. This results in the formation of an enolate ion.

**Hint:** Identify the acidic hydrogen in cyclohexanone that can be removed by the base.

### Step 4: Nucleophilic Attack
The enolate ion formed acts as a nucleophile and attacks the carbonyl carbon of another cyclohexanone molecule. This forms a β-hydroxy ketone.

**Hint:** Remember that nucleophiles attack electrophiles in organic reactions.

### Step 5: Condensation Reaction
The β-hydroxy ketone can then undergo dehydration (loss of water) to form an α,β-unsaturated ketone. This is the aldol condensation step.

**Hint:** Consider the elimination of water as part of the condensation process.

### Step 6: Final Product Structure
The final product of the reaction between cyclohexanone and Na₂CO₃ will be an α,β-unsaturated ketone, specifically 2-cyclohexenone.

**Hint:** Visualize the structure of the final product and how it relates to the starting materials.

### Conclusion
When cyclohexanone is treated with Na₂CO₃ solution, the product obtained is 2-cyclohexenone.