13 Questions
What is the empirical formula for carbohydrates composed of C, H, and O?
(CH2O)5
Which functional groups can carbohydrates contain?
Aldehyde group or keto group
What is the simplest aldose sugar?
D-glyceraldehyde
How are monosaccharides classified according to the number of carbon atoms?
By the number of carbon atoms
What is the general term for compounds that have a large number of hydroxyl groups?
Alcohols
Which type of carbohydrates are classified as either homopolysaccharides or heteropolysaccharides?
Polysaccharides
Which type of isomerism determines whether a sugar belongs to the D or L series?
Optical isomerism
Which monosaccharide naturally occurs in the L form?
L-Arabinose
What confers optical activity on a compound?
Presence of asymmetric carbon atoms
What causes isomers differing in configuration at carbons 2, 3, or 4 of glucose?
Epimerism
Which type of isomerism produces isomers differing by the orientation of –OH groups around only one of the middle asymmetric carbons?
Epimerism
Which sugar naturally occurs in the D(–) isomeric form?
Fructose
What determines whether a sugar belongs to the D or L series?
-OH position on carbon 5
Explore the general characteristics and classification of carbohydrates including their empirical formula, composition, and functional groups. Understand the significance of carbohydrates as the most abundant compounds in nature.
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