<prompt> Smokeless gun powder is composed of ?KMnO4HCNNitrocelluloseSulphur  <response>: Ans. is c i.e., Nitrocellulose Smoke producing powder :- Black powder black gun powder, Pyrodex. Smokeless powder :- Black powder plus nitrocellulosenitrocellulose nitroglycerinenitroglycerine nitrocellulose nitroguanidine. Semismokeless powder :- 80 black powder plus 20 smokeless powder. 