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I overset(O(2))(larr)"Benzaldehyde" over...

I` overset(O_(2))(larr)"Benzaldehyde" overset(NH_(3))(rarr)`II, I, II are -

A

Benzoic acid, Benzaldehyde ammonia

B

Benzoic acid, Hydrobenzamide

C

Phenyl acetic , Benzaldehyde ammoina

D

Benozic acid, Aniline

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the reactions involving benzaldehyde, oxygen, and ammonia. Here’s a step-by-step breakdown of the process: ### Step 1: Identify the reaction of benzaldehyde with oxygen. Benzaldehyde (C₇H₆O) can be oxidized in the presence of oxygen (O₂). The oxidation of benzaldehyde leads to the formation of benzoic acid (C₇H₆O₂). **Hint:** Remember that aldehydes are generally oxidized to carboxylic acids. ### Step 2: Write the reaction for the oxidation of benzaldehyde. The balanced reaction for the oxidation of benzaldehyde can be represented as: \[ \text{Benzaldehyde} + \text{O}_2 \rightarrow \text{Benzoic Acid} \] Thus, we can conclude that: - **I = Benzoic Acid** **Hint:** Look for the functional group changes when an aldehyde is oxidized. ### Step 3: Identify the reaction of benzaldehyde with ammonia. When benzaldehyde reacts with ammonia (NH₃), it forms an imine. The reaction involves the nucleophilic attack of the lone pair of electrons from ammonia on the carbonyl carbon of benzaldehyde. **Hint:** Recall that imines are formed when aldehydes or ketones react with primary amines. ### Step 4: Write the reaction for the formation of the imine. The reaction can be represented as: \[ \text{Benzaldehyde} + \text{NH}_3 \rightarrow \text{Hydrobenzamide} \] In this reaction, the hydroxyl group (OH) is eliminated, leading to the formation of a C=N bond. Thus, we can conclude that: - **II = Hydrobenzamide** **Hint:** Consider the stability of the product formed; imines can often polymerize or further react. ### Final Conclusion: Based on the reactions analyzed: - **I = Benzoic Acid** - **II = Hydrobenzamide** ### Summary: The final answers to the question are: - I = Benzoic Acid - II = Hydrobenzamide
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