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