AIIMS 2019 Chemistry Tollen's Test MCQ Question

Acetals do not give a positive Tollen’s test because they lack a free aldehyde or ketone functional group, which is necessary for the reduction of silver ions (Ag⁺) to metallic silver (Ag) in the presence of Tollen's reagent. Instead, acetals are stable and do not react under these conditions, leading to a negative result. Other options are not applicable as they do not pertain to the question's context regarding the chemical behavior of acetals with Tollen's reagent.