Question:
Which from following, sugar is an aldohexose?
Which from following, sugar is an aldohexose?
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An aldohexose has six carbons and an aldehyde group; glucose fits.
Updated On: Oct 1, 2026
- Ribose
- Fructose
- Lactose
- Glucose
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
The name "aldohexose" means a sugar with an aldehyde group and six carbon atoms.
Step 2: Check the Options:
Ribose: aldehyde, five carbons, so aldopentose.
Fructose: ketone, six carbons, so ketohexose.
Lactose: a disaccharide, not a single sugar.
Glucose: aldehyde, six carbons, so aldohexose.
Step 3: Conclusion:
Glucose is the aldohexose.
Final Answer:
Glucose is an aldohexose, option (D). \[ \boxed{\text{(D) Glucose}} \]
The name "aldohexose" means a sugar with an aldehyde group and six carbon atoms.
Step 2: Check the Options:
Ribose: aldehyde, five carbons, so aldopentose.
Fructose: ketone, six carbons, so ketohexose.
Lactose: a disaccharide, not a single sugar.
Glucose: aldehyde, six carbons, so aldohexose.
Step 3: Conclusion:
Glucose is the aldohexose.
Final Answer:
Glucose is an aldohexose, option (D). \[ \boxed{\text{(D) Glucose}} \]
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