Question:
Which of the following statements is not true about glucose?
Which of the following statements is not true about glucose?
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Schiff's reagent tests for aldehydes, and glucose, being an aldose, will give a positive result.
Updated On: Feb 28, 2025
- It is an aldose.
- On heating with HI it forms n-hexane.
- It exists in furanose form.
- It does not give Schiff's test.
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The Correct Option is D
Solution and Explanation
Step 1: Understanding glucose's properties.
Glucose is an aldose (option A) and forms n-hexane on heating with HI (option B). It can exist in the furanose form (option C) as well.
Step 2: Schiff's test. Glucose, being an aldehyde, will give a positive Schiff's test, which detects aldehydes.
Step 3: Conclusion. Thus, the statement that glucose does not give Schiff's test is incorrect, corresponding to option (D).
Step 2: Schiff's test. Glucose, being an aldehyde, will give a positive Schiff's test, which detects aldehydes.
Step 3: Conclusion. Thus, the statement that glucose does not give Schiff's test is incorrect, corresponding to option (D).
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