/6 Science Quiz (for 12 to 16 years old): Quiz 19 1 / 6Tetraethyl lead is used as pain killer mosquito repellent petrol additive fire extinguisher 2 / 6In which of the following activities silicon carbide is used? Making cement and glass Making casts for statues Disinfecting water of ponds cutting very hard substances 3 / 6Which of the following is used as a lubricant? Diamond Iron Oxide Silica Graphite 4 / 6What is laughing gas? Carbon monoxide Nitrous Oxide Sulphur dioxide Hydrogen peroxide 5 / 6Sodium metal is kept under kerosene water petrol alcohol 6 / 6The filament of an electric bulb is made of tungsten nichrome graphite iron Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback By WordPress Quiz plugin
