Multiple choice Among the following, --------------------- is used as a fumigant. Aluminium oxide Aluminium phosphide Aluminium chloride Aluminium fluoride Reveal answer Fill a bubble to check yourself B Correct answer Explanation Aluminium phosphide is an inorganic compound used as a wide band gap semiconductor and a fumigant. This colourless solid is generally sold as a grey-green-yellow powder due to the presence of impurities arising from hydrolysis and oxidation.