(a) What is a carbohydrate? (b) Name two types of carbohydrates and give one example of each type

Assessment: WAEC SSCE - Chemistry - 1988 (Objective) Subject: Chemistry

Question 1 Report

 (a) What is a carbohydrate?

(b) Name two types of carbohydrates and give one example of each type

Answer Details

(a) What is a carbohydrate?

A carbohydrate is an organic compound containing carbon, hydrogen and oxygen, in which the hydrogen and oxygen are usually present in the ratio 2 : 1 (the same ratio as in water). Carbohydrates have the general formula Cx(H2O)y and are polyhydroxy aldehydes or ketones (or compounds that yield them on hydrolysis).

(b) Two types of carbohydrates with one example of each

TypeExample
MonosaccharideGlucose (or fructose)
DisaccharideSucrose (or maltose)
PolysaccharideStarch (or cellulose)

Any two types with their correct examples are acceptable.

Read lesson note on Chemistry, Industry And The Environment (WAEC)
Read lesson note on Basic Biochemistry And Synthetic Polymers (WAEC)
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