Question

Carbohydrate molecules have all of the following bonds except-

A.C-C
B.C-N
C.C-H
D.C-O

Answer 1

The correct option is B.
Carbohydrates are made up of three different elements which are carbon, hydrogen and oxygen. In the carbohydrate molecules, these elements are connected in various way forming C-C, C-H AND C-O bond. C-N bond does not exist in carbohydrates because carbohydrates do not contain nitrogen.