In Cx(H2O)y x ranges from______________?
Correct answer: B. 3 to many thousand
- A. 1 to 3 thousand
- B. 3 to many thousand
- C. 3 to 5 thousand
- D. 5 to 9 thousand
Explanation
In the general formula Cx(H2O)y for carbohydrates, x may begin at 3 in trioses and extend to many thousands in polysaccharides. The likely mistake is choosing 3 to 5 thousand by treating the range as a fixed upper limit rather than recognising that polysaccharides can contain many more sugar units.
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