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Chemistry Quiz

Questions: 10 Difficulty: Mixed

You can only choose once. Choose wisely.

1. Which element has the highest electronegativity? (Chemistry)

Fluorine
Nitrogen
Oxygen
Chlorine

2. What is the name of the process used to separate crude oil into its components? (Chemistry)

Centrifugation
Decantation
Filtration
Fractional distillation

3. What is the most abundant gas in Earth’s atmosphere? (Chemistry)

Oxygen
Carbon dioxide
Nitrogen
Argon

4. Which gas is used in balloons to make them float? (Chemistry)

Nitrogen
Oxygen
Helium
Hydrogen

5. What is the chemical formula for water? (Chemistry)

CO2
CH4
O2
H2O

6. What is the chemical formula for table salt? (Chemistry, Science, General Knowledge)

NaCl
NaHCO₃
KCl
CaCO₃

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

Respiration
Oxidation
Chemosynthesis
Photosynthesis

8. What is the molecular formula for table salt? (Chemistry)

NaCl
KCl
CaCO3
NaHCO3

9. What is the common name for sodium bicarbonate? (Chemistry)

Epsom salt
Baking soda
Limewater
Washing soda

10. What element does the chemical symbol 'Fe' represent? (Chemistry)

Fermium
Ferrous
Iron
Fluorine