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  • Which of the following will not react with tollen's reagent ? Option: 1 Glucose Option: 2

Which of the following will not react with tollen's reagent ? 

Option: 1

Glucose 


Option: 2

Sucrose 


Option: 3

Fructose


Option: 4

Galactose


Answers (1)

best_answer

As we have learnt,

Reducing Sugars contain free aldehyde \mathrm{(-CHO)} or Ketone \mathrm{(-C=O)} group (tautomerisable to an aldehyde) and are capable of reducing Fehling solution and Tollen's reagent. 

Eg. Maltose, Glucose, Fructose , Galactose.

These are usually identified by a hemiacetal linkage in the cyclic Haworth representation.

Sucrose is not a reducing sugar.

Hence, the correct answer is Option (2)

Posted by

avinash.dongre

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