Glucose pentaacetate shows that glucose carries how many hydroxyls?
AFive
BNine
CFour
DSeven
Answer & Solution
Correct answer: A. Five
1. Acetic anhydride acetylates every free hydroxyl.
2. The product carries five acetyl groups.
3. So glucose has five hydroxyl groups.
_Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_
Keep practising Amines and Biomolecules
Browse all Amines and Biomolecules questions for AP Intermediate 2nd Year, or explore more Chemistry topics.
Related questions
Carbohydrates are defined as optically active polyhydroxy:Order the steps to a coloured azo dyeAmylopectin makes up roughly what share of starch?Commercial glucose is obtained by hydrolysing starch at:Fructose is best described as a:The six membered ring form of glucose is called the:In DNA, the complementary base pair to adenine (A) is:A monosaccharide holding an aldehyde group is called an: