Question

Correctly match the following Monosaccharides with their respective Epimers. 

 

• A. P-4; Q-1; R-2; S-3
• B. P-5; Q-1; R-2; S-3
• C. P-4; Q-3; R-5; S-1
• D. P-1; Q-5; R-3; S-2

Hint:

Epimers differ at one specific carbon atom in the sugar molecule, and this carbon atom determines the name of the epimer.

Answer 1

The Correct Option is A

To match the monosaccharides with their respective epimers, we need to identify the epimers of the given monosaccharides based on the carbon position at which the difference occurs.

Step 1: D-Mannose
D-Mannose is an epimer of D-Glucose at C-2. This means the epimer of D-mannose is the C-4 epimer of D-glucose.
Thus, \( P \) matches with 4.

Step 2: D-Allose
D-Allose is the C-3 epimer of D-Glucose.
Thus, \( Q \) matches with 1.

Step 3: D-Galactose
D-Galactose is the C-4 epimer of D-Glucose.
Thus, \( R \) matches with 2.

Step 4: D-Talose
D-Talose is the C-4 epimer of D-Mannose.
Thus, \( S \) matches with 3.

Final Answer:
The correct answer is \( \boxed{A} \).