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Chemistry Quiz

Questions: 10 Difficulty: Mixed

You can only choose once. Choose wisely.

1. What is the first element on the periodic table? (Chemistry)

Carbon
Hydrogen
Helium
Oxygen

2. What is the name of the process by which plants convert sunlight into chemical energy? (Chemistry)

Photosynthesis
Chemosynthesis
Respiration
Oxidation

3. What is the atomic number of oxygen? (Chemistry, Science)

9
7
8
6

4. Which gas is most abundant in Earth's atmosphere? (Chemistry, Science, General Knowledge)

Helium
Nitrogen
Oxygen
Carbon Dioxide

5. What is the charge of an electron? (Chemistry)

Negative
Neutral
Positive
Variable

6. Which acid is found in the stomach? (Chemistry)

Hydrochloric acid
Nitric acid
Acetic acid
Sulfuric acid

7. Who discovered radioactivity? (Physics, Chemistry)

Isaac Newton
Marie Curie
Albert Einstein
Wilhelm Roentgen

8. What is the term for a substance that speeds up a chemical reaction without being consumed? (Chemistry)

Reactant
Solvent
Catalyst
Inhibitor

9. What is the pH of a neutral solution at 25°C? (Chemistry)

10
7
0
14

10. Which element is commonly used in thermometers? (Chemistry)

Mercury
Lead
Copper
Iron