Which of the following Fischer projection formula is same as D-Glyceraldehyde ?

Options

A.
B.
C.
D.

Explanation

To determine which Fischer projection formula corresponds to D-Glyceraldehyde, we need to understand the structure of D-Glyceraldehyde and how to interpret Fischer projections.

### Step-by-Step Solution:

1. **Identify the Structure of Glyceraldehyde**:
- Glyceraldehyde is a three-carbon sugar (aldose) with the following structure:
- The first carbon (C1) has an aldehyde group (CHO).
- The second carbon (C2) has a hydroxyl group (OH).
- The third carbon (C3) has a hydroxymethyl group (CH2OH).
- The molecular formula is C3H6O3.

2. **Determine the Configuration of D-Glyceraldehyde**:
- The "D" in D-Glyceraldehyde indicates the configuration of the hydroxyl group on the second carbon (C2).
- For D-Glyceraldehyde, the hydroxyl group (OH) on C2 is on the right side in the Fischer projection.

3. **Draw the Fischer Projection**:
- In the Fischer projection, the most oxidized carbon (the aldehyde group) is placed at the top.
- Therefore, the structure looks like this:
```
CHO
|
C
|
OH
|
CH2OH
```
- In this structure, the OH group is on the right side of C2, confirming it is D-Glyceraldehyde.

4. **Compare with Given Options**:
- Now, we need to compare the Fischer projections provided in the question with the structure we have drawn.
- Look for the option where:
- The aldehyde group (CHO) is at the top.
- The OH group is on the right side of the second carbon.

5. **Select the Correct Option**:
- After comparing the options, the one that matches our drawn structure of D-Glyceraldehyde is the correct answer.

### Conclusion:
The Fischer projection formula that is the same as D-Glyceraldehyde is the one where the aldehyde group is at the top and the hydroxyl group is on the right side of the second carbon.