All are components of gun-powder EXCEPT:: (A) Charcoal, (B) Lead peroxide, (C) Potassium nitrate, (D) Sulphur
Answer is B. Gun Powder is of two types: a) Black gun powder: Contains Potassium nitrate 75% + Charcoal 15% + sulphur 10% b) Smokeless Powder is of following types: -Single Base: Contains nitrocellulose -Double Base: contains nitrocellulose + nitroglycerine -Triple Base: Contains Nitrocellulose + Nitroglycerine + nitroguanidine