JEE MAIN - Chemistry (2019 - 8th April Evening Slot - No. 4)
Fructose and glucose can be distinguished by :
Barfoed's test
Fehling's test
Seliwanoff's test
Benedict's test
Explanation
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.
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