Unlike glucose, neither `alpha` nor `beta`-methyl glucoside reduces Tollens' reagent or Fehling solution. Why?

Pick out the compound that reduces Tollen's reagent and Fehling's solution.

Give the reaction of glucose with Tollen's reagent and Fehling's solution.

Why formic acid reduces Tollen's reagent like aldehydes?

How can you differntiate between D-glucose and D-fructose using Tollens' reagent or fehling's solution?

A carbonyl compound gives a positive lodoform test but but does not reduce Tollen's reagent or Fehling's solution. It forms a cyanohydrin with HCN, which on hydrolysis gives a hydroxy acid with a methyl side chain. The compound :-