Which one of the following is ethylene absorbent

Solution (By Examveda Team)

KMnO₄ (Potassium permanganate) is ethylene absorbent among the given options.
Potassium permanganate reduced the concentration of ethylene and calcium hydroxide reduced the concentration of carbon dioxide in sealed polyethylene bags containing bananas.
It was estimated that about two weeks of additional storage life was obtained by packing potassium permanganate with the fruit.