What is/are the benefits of using thionyl chloride and phosphorous tribromide to convert alcohols to bromines and chlorides? Select all that apply (4 of them) the mechanism includes steps that are safe to do in the lab the reaction is generally extremely effective in terms of yields the mechanism includes the formation if a better leaving group (LG) that facilitates the reaction there is reduction of the production different stereochemistry the side products / byproducts are easily removed (gases or wash away in water) reduces the chance of dehydration under acidic conditions the mechanism is less steps