Chemistry Quiz (1) Test your knowledge of chemistry with this fun and challenging quiz! See if you can answer all 12 questions correctly delya90 published on January 231 response 1 « Previous Next » Questions in vertical order 1/12 What is the chemical symbol for gold? Au Ag Fe Hg 2/12 Which gas is commonly known as laughing gas? O2 He H2 N2O 3/12 What is the chemical formula for water? H2O CO2 CH4 NaCl 4/12 Which element has the atomic number 6? Oxygen Carbon Nitrogen Hydrogen 5/12 What is the pH value of a neutral substance? 0 7 14 10 6/12 What is the chemical symbol for potassium? K P Ko Ke 7/12 Which gas is responsible for the smell of rotten eggs? He O2 SO2 CO2 8/12 Which compound is responsible for the greenhouse effect? CO2 O2 H2O CH4 9/12 What is the freezing point of water in Celsius? 0 100 32 -273 10/12 Which element is essential for the process of photosynthesis? Carbon Oxygen Nitrogen Hydrogen 11/12 What is the chemical symbol for helium? He H Be Ne 12/12 Which gas is used in the production of soft drinks? Oxygen Carbon dioxide Helium Argon
