What are 'X' and 'Y' respectively?

Options

A.
B.
C.
D.

Answer

To solve the question, we need to identify the compounds X and Y based on the reactions described in the video transcript.

### Step-by-Step Solution:

1. **Identify the Reactant**:
The reactant is given as CH2=CH-CHO. This is an allylic aldehyde, where we have a double bond (C=C) and an aldehyde group (CHO).

2. **Reaction with NaBH4**:
- NaBH4 (sodium borohydride) is a selective reducing agent that primarily reduces aldehydes and ketones to their corresponding alcohols without affecting double bonds.
- In this case, the aldehyde group (CHO) will be reduced to a primary alcohol (CH2OH), while the double bond (C=C) remains unchanged.
- Therefore, the product after the reaction with NaBH4 will be CH2=CH-CH2OH.

3. **Identify Y**:
- The product formed after the reaction with NaBH4 is Y = CH2=CH-CH2OH (an allylic alcohol).

4. **Reaction with H2 in the presence of Pt**:
- The reaction with H2 in the presence of platinum (Pt) is a hydrogenation reaction. This will reduce both the double bond (C=C) and the aldehyde group (CHO).
- The double bond will be converted to a single bond, and the aldehyde will be reduced to a primary alcohol.
- Therefore, the product after hydrogenation will be CH3-CH2-CH2OH (a straight-chain primary alcohol).

5. **Identify X**:
- The product formed after the reaction with H2 and Pt is X = CH3-CH2-CH2OH.

6. **Final Answer**:
- Thus, the values for X and Y are:
- X = CH3-CH2-CH2OH (a primary alcohol)
- Y = CH2=CH-CH2OH (an allylic alcohol)

### Conclusion:
X and Y respectively are:
- X = CH3-CH2-CH2OH
- Y = CH2=CH-CH2OH