Quiz on Chemistry
A quiz on basic chemistry concepts
1. What is the chemical equation for photosynthesis?
a) H2O2
b) CO2
c) C6H12O6
d) H2O
2. What is the atomic number of carbon?
a) 6
b) 12
c) 16
d) 8
3. Which element is the most abundant in the Earth's atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon
d) Hydrogen
4. What is the chemical formula for water?
a) H2O2
b) CO2
c) H2O3
d) H2O
5. What is the pH value of a neutral solution?
a) 7
b) 0
c) 14
d) -1
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