Question

Which of the following represents the correct structure of \( \beta\text{-}D\text{-}(-)\text{-} \) Fructofuranose?

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

In \( \beta \)-D-fructofuranose, the –OH group at C-2 is above the ring, and the structure is a five-membered furanose ring.

Answer 1

The Correct Option is C

Step 1: Fructofuranose is the five-membered ring structure of fructose (a ketohexose). Step 2: In the \( \beta \)-anomer, the –OH group on the anomeric carbon (C-2 in fructose) is above the plane in the Haworth projection. Step 3: Among the given structures, Option (3) correctly shows the five-membered ring with appropriate orientation of substituents for \( \beta \)-D-fructofuranose.