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The molecular formula of glucose is:

AC₁₂H₂₂O₁₁
BC₆H₁₂O₆
CC₅H₁₀O₅
DC₆H₁₀O₅
Answer & Solution
Correct answer: B. C₆H₁₂O₆
**Glucose:** C₆H₁₂O₆ (aldohexose). Fructose has same formula (ketohexose) — they are constitutional isomers. Sucrose: C₁₂H₂₂O₁₁.
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