The formula of starch is__________________?
Correct answer: C. (C6H10O5)n
- A. C12H22O11
- B. C6H10O5
- C. (C6H10O5)n
- D. C6H12O6
Explanation
Starch is a polysaccharide made from a large number of glucose units joined by condensation reactions, so its general formula is (C6H10O5)n. C6H10O5 represents one repeating anhydroglucose unit, whereas C6H12O6 represents a free glucose molecule.
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About Polymers
Polymers are large molecules made from repeating monomer units joined by covalent bonds. The topic distinguishes addition polymers such as polyethylene, PVC and polystyrene from condensation polymers such as nylon and polyester, and relates chain structure to thermoplastics, thermosetting polymers, elastomers, properties, uses and environmental concerns.
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