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