Carbohydrates are organic molecules and contain three elements:
Correct answer: D. Carbon, hydrogen, and oxygen
- A. Carbon, water, and oxygen
- B. Carbon, sulfur, and hydrogen
- C. Carbon, calcium, and hydrogen
- D. Carbon, hydrogen, and oxygen
Explanation
Carbohydrates are organic molecules composed of three elements: carbon (C), hydrogen (H), and oxygen (O). The general formula for carbohydrates is typically represented as Cn(H2O)n, which reflects the ratio of hydrogen to oxygen being 2:1, similar to water. This distinguishes carbohydrates from other organic molecules that might contain different elements or ratios.Option A is incorrect because water is not an element. Option B is incorrect because sulfur is not typically part of carbohydrates. Option C is incorrect because calcium is not a component of carbohydrates.
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