Select the correct general formula for carbohydrates:
Correct answer: C. Cn(H2O)n
- A. C2nHnO2n
- B. Cn(H2O)2n
- C. Cn(H2O)n
- D. CnH3nO2n
- E. Hn(C2O)n
Explanation
The term carbohydrate means "hydrate of carbon." Many common carbohydrates have the empirical formula CH2O, which can be generalized to Cn(H2O)n. This formula shows that the ratio of hydrogen to oxygen atoms is 2:1, the same as in water.
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