Which of the following pairs give positive Tollens test?A. Glucose, Su – InterviewSolution

InterviewSolution

1.	Which of the following pairs give positive Tollens test?A. Glucose, SucroseB. Glucose, fructoseC. Hexanal, acetophenoneD. Fructose,sucrose
Answer» Correct Answer - B Glucose is an aldehyde, gives positive Tollens test. Fructose although ketone gives positive Tollens test because under the basic conditions of the reagent, fructose undergoes a rearrangement to form glucose and mannose `(C-2 "epimer of glucose")`.

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