Question 1
Which gas do green plants take in to make sugars using sunlight?
- Carbon dioxide
- Oxygen
- Hydrogen
- Nitrogen
Show the answer
Carbon dioxide
Science · Chemistry
Chemical Reactions trivia quiz
How well do you really know Chemical Reactions? Find out in a live duel. QuizDown has over 120 Chemical Reactions questions, from easy to expert, and you’re matched with a real player who gets the same seven.
What the Chemical Reactions questions cover
- Rearrangements
- Photochemistry
- Combustion
- Coupling Reactions
- Electrolysis
- Organometallic
- Carbonyl Chemistry
- Catalysts
- Cross-Coupling
- Curtius
- Electrocyclic
- Electrocyclics
Try three Chemical Reactions questions
Question 2
Which gas is released by plants as a result of using sunlight to make food?
- Carbon dioxide
- Oxygen
- Nitrogen
- Helium
Show the answer
Oxygen
Question 3
What reddish-brown material forms when iron reacts with oxygen and water over time?
- Copper
- Graphite
- Rust
- Aluminum
Show the answer
Rust
In a real match you’d have ten seconds for each, and faster right answers score more.
How a Chemical Reactions match works
- Seven rounds. The same seven Chemical Reactions questions for you and your opponent.
- Ten seconds each. A right answer in two seconds scores 20; at the buzzer, 11.
- The last round counts double. It’s never over until it’s over.
Your Chemical Reactions ranking is its own: climb it without your other topics dragging you down.