Double based smokeless gun powder consist of -: (A) Nitrocellulose plus nitroglycerine, (B) Nitrocellulose plus sulphur, (C) Potassium nitrate plus nitroglycerine, (D) Potassium nitrate plus charcoal
Answer is A. The synopsis of forensic medicine & toxicology ; Dr k.s narayan reddy ; 28th edition ; Pg.no. 125 Nitrocellulose -single base Nitrocellulose & nitroglycerin - double base Nitrocellulose, nitroglycerin, nitroguanidine - triple base