The following carbohydrate is

Options

A. a ketohexose
B. an aldohexose
C. an `alpha`-furanose
D. an `alpha`- pyranose

Answer

B

Explanation

Since the given carbohydrate has five carbon and one oxygen atom in the ring. Therefore , it has pyranose ring. Further , since `C_1-OH` is `beta` -oriented, therefore , it is a `beta`-pyranose. Further , the carbohydrate has in all six carbon atoms and also has one H and OH group at `C_1` , therefore , it is an aldohexose. Thus , option (b) is correct.