Why are large-scale chemical attacks difficult to accomplish?

Answer Explanation:

An attack which is due to toxic gasses or chemicals on any place is called chemical attacks. Chemical attacks have genetic and mental effects. it is difficult to accomplish large scaled chemicals attacks. these difficulties are.

it needs a particular temperature which is mostly very high in case of chemical attacks which is not which is not possible to provide. it is difficult to hold large chemical weapons for large scaled chemical attacks we need very huge amount of chemicals which is not easily available. there is also a difficulty to drop chemical bombs or weapons at right place