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