Question:

What are X and Y respectively in the following reactions? 

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DIBAL-H is a strong reducing agent commonly used to reduce carboxylic acids to aldehydes.
Updated On: May 16, 2025
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The Correct Option is C

Approach Solution - 1

In the reaction, the compound \( {C}_6{H}_5{COOH} \) (Benzoic Acid) reacts with a reducing agent to form the corresponding aldehyde.
- Step 1: The reaction of \( {C}_6{H}_5{COOH} \) with DIBAL-H (Diisobutylaluminum hydride) leads to the reduction of the carboxyl group (\( {COOH} \)) to an aldehyde group (\( {CHO} \)).
- Step 2: The addition of water \( {H}_2{O} \) hydrolyzes the intermediate to yield the desired product.
Thus, X is DIBAL-H and Y is the aldehyde formed from the reduction of benzoic acid.
Therefore, the correct answer is option (3).
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Approach Solution -2

X and Y in the given reactions are determined based on the typical chemical reaction pathways and reagents involved.

Understanding the Reaction:

To determine the identities of X and Y, we need to analyze each reaction step and recognize the reagents and products characteristic of common organic chemistry transformations.

  • In many organic reactions, the reagents and conditions involved in one step will dictate the nature of the other steps.
  • Using structural analysis, the transformation products typically hint at well-known reactions like substitutions, additions, oxidations, or reductions.

Step-by-step Analysis:

  1. Recognizing Reactions: Identify patterns or signatures of reagents. Each chemical equation often points towards either classical organic transformations or mechanistic pathways known in chemistry.
  2. Determine X and Y: Match reagents or products to known transformations or rearrangements, filling in missing components based on chemical logic or experimental data.
  3. Confirm Correctness: Compare possible solutions to provided options, finding congruence with known chemical principles or curricular examples.

The correct match for X and Y in the given set of reactions is represented in the option containing the respective chemical structures depicted in the third image provided in the options.

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