MolSynapsequestion bank

MolSynapse / Question bank / Biomolecules / Carbohydrates: classification, glucose structure, reactions

NEET levelSingle correct optionDifficulty 1 of 3bm166

Which of the following is a ketohexose?

AD-glucose
BD-ribose
CD-fructose
DD-galactose

Answer: C

Fructose has a ketone group at C-2 and six carbons, so it is a ketohexose. Glucose and galactose are aldohexoses and ribose is an aldopentose.

Practice Biomolecules More on Carbohydrates: classification, glucose structure, reactions

Previous questionNext question

More questions on Carbohydrates: classification, glucose structure, reactions

Which sugars give the same osazone as D-glucose? JEE Advanced level
Which observations about glucose are best explained by its cyclic hemiacetal structure? JEE Advanced level
Which statements about D-fructose are correct? JEE Advanced level
D-glucose is warmed with bromine water. The main product is NEET level
alpha-D-glucopyranose and beta-D-glucopyranose differ in configuration only at NEET level
Glucose reacts with acetic anhydride to give a pentaacetate. This shows that glucose contains NEET level