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