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