Which of the following reacts with KMnO4 but does not react with AgNO3?

Baeyer's reagent is alkaline potassium permanganate solution. It reacts with unsaturated hydrocarbon (alkene, alkyne, etc.) and decolourizes its pink colour. Silver nitrate reacts with acidic hydrogen of alkyne and makes white precipitate. Among the given options, methane and ethane are alkanes, so they don't react with either solution. Ethene is unsaturated but doesn't have acidic hydrogen. So it reacts with Baeyer's reagent but does not react with silver nitrate. Alkyne reacts with both reagents. 100. Which of the following does not give a white precipitate with AgNO3 solution? (a) Propyne (