/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 Nitrogen Hydrogen 2 / 6What is the name of gas which is used in fire extinguishers? Sulphur dioxide Hydrogen Carbon dioxide 3 / 6What is the molecular formula of Calcium chloride? CaCl2 HCl NaCl 4 / 6What is the molecular formula of Calcium nitrate? C2H5OH CaCO3 Ca(NO3)2 5 / 6What is the primary component of natural gas? Hexane Methane 6 / 6What is the molecular formula of Calcium hydroxide? C2H5OH CaCO3 Ca(OH)2 Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback
