Question

Which bond provides stability to complex carbohydrate molecules?
a. C-H
b. C-C
c. C-O
d. C-N

Answer 1

I would say C-C because that is generally referred to as the "backbone" of the carbohydrate molecule, whereas C-O generally just provides functionality and C-H are peripheral and not central to the structure of the molecule. Many carbohydrate molecules do not contain nitrogen, so it is definitely not d).