Assertion:- The carbonyl carbon is a electrophilic and carbonyl oxygen, is a nucleophilic central.
Reason:- carbon oxygen bond is nonpolar in carbonyl compound.

Options

A. If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.
B. If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion `&` Reason are False.

Answer

To solve the assertion and reason question, let's break down the components step by step.

### Step 1: Understanding the Assertion
The assertion states that the carbonyl carbon is electrophilic and the carbonyl oxygen is nucleophilic.

- **Electrophilic Carbonyl Carbon**: In a carbonyl group (C=O), the carbon atom is positively polarized due to the higher electronegativity of oxygen. This makes the carbon atom susceptible to attack by nucleophiles (electron-rich species).

- **Nucleophilic Carbonyl Oxygen**: The oxygen atom in the carbonyl group has a partial negative charge due to its higher electronegativity compared to carbon. This makes it capable of donating electrons, thus acting as a nucleophile.

### Step 2: Understanding the Reason
The reason states that the carbon-oxygen bond in carbonyl compounds is nonpolar.

- **Polar vs Nonpolar Bonds**: The carbon-oxygen bond in carbonyl compounds is actually polar. Oxygen is more electronegative than carbon, leading to a dipole moment where oxygen carries a partial negative charge and carbon carries a partial positive charge.

### Step 3: Analyzing the Assertion and Reason
- The assertion is **true** because the carbonyl carbon is indeed electrophilic and the carbonyl oxygen is nucleophilic.
- The reason is **false** because the carbon-oxygen bond in carbonyl compounds is polar, not nonpolar.

### Conclusion
Based on the analysis, the assertion is true and the reason is false. Therefore, the correct answer is that the assertion is true, but the reason is false.

### Final Answer
- **Assertion**: True
- **Reason**: False
- **Correct Option**: Assertion is true, reason is false.

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