/6 Science Quiz (for 12 to 16 years old): Quiz 13 1 / 6What is the name of Gas which is majorly contained by Biogas? Methane Hydrogen Nitrogen 2 / 6What is the name of gas which is used in fire extinguishers? Hydrogen Carbon dioxide Sulphur dioxide 3 / 6What is the primary component of natural gas? Hexane Methane 4 / 6What is the molecular formula of Calcium chloride? HCl CaCl2 NaCl 5 / 6What is the molecular formula of Calcium hydroxide? Ca(OH)2 C2H5OH CaCO3 6 / 6What is the molecular formula of Calcium nitrate? Ca(NO3)2 C2H5OH CaCO3 Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback By WordPress Quiz plugin
