I don’t know what specific plane you’re talking about, but several planes have been used in several chlorine attacks on Syrian civilians.
Sorry for the truth
Not true. 1 jet bombed an isis stronghold on nortwest Syria where they hid among civilians. The bomb hit a warehouse full of chlorine gas where it was apparently manufactured for transport to Mosul by isis. That was confirmed by Gen Mattis. Absolutely no other aircraft involved ever in chlorine gas . The use of chlorine gas by Syria in Syria is an absolute lie .