1) Which of the following pairs give positive Tollen's test? A) Glucose , sucrose B) Glucose ,fructose C) Hexanal, acetophenone D) Fructose,sucrose Answer: Option BExplanation:Aldehydes and $\alpha$- hydroxy ketones give positive Tollen's test. Glucose being a polyhydroxy aldehyde and fructose an $\alpha$-hydroxy give positive Tollen's test
