Verified Solution • 2025–26 Session
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QJEEM19Ch5a4e: JEE Main 2019 Chemistry - Class 12 JEEM19Ch5a4e Solution: Fructose and glucose can be distinguished by :
Fructose and glucose can be distinguished by :
Multiple Choice Options
- A Barfoed's test
- B Fehling's test
- C Seliwanoff's test
- D Benedict's test
Step-by-Step Verified Solution
Seliwanoff's test is used to distinguish aldose and ketose.
When Seliwanoff's reagent added to a solution containing ketoses, red colour is formed rapidly indicating a positive test.
While in case of aldose, a slower forming light pink colour observed.
When Seliwanoff's reagent added to a solution containing ketoses, red colour is formed rapidly indicating a positive test.
While in case of aldose, a slower forming light pink colour observed.