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Basic Chemistry Trivia
Test your knowledge of basic chemistry. Elements, symbols, and simple reactions.
Answer each question below. Select a choice or reveal the answer for instant feedback. There is no timer — work at your own pace.
Full set25 / 25 questions
Question 1easy
What is the chemical symbol for water?
The correct answer is B. H2O
Question 2easy
What is the chemical symbol for oxygen?
The correct answer is A. O
Question 3easy
What is the chemical symbol for carbon?
The correct answer is A. C
Question 4easy
How many states of matter are commonly taught in basic science?
The correct answer is B. 3
Question 5easy
What gas do plants absorb from the air for photosynthesis?
The correct answer is A. Carbon dioxide
Question 6easy
What gas do humans primarily breathe in?
The correct answer is D. Oxygen
Question 7easy
Table salt is primarily made of which two elements?
The correct answer is C. Sodium and chlorine
Question 8medium
What is the chemical symbol for sodium?
The correct answer is A. Na
Question 9medium
What is the atomic number of carbon?
The correct answer is C. 6
Question 10medium
What does the pH scale primarily measure?
The correct answer is A. Acidity of a solution
Question 11medium
What type of bond forms when electrons are transferred from one atom to another?
The correct answer is C. Ionic bond
Question 12medium
What is the chemical symbol for gold?
The correct answer is B. Au
Question 13medium
What is the chemical symbol for iron?
The correct answer is A. Fe
Question 14medium
How many protons does a hydrogen atom have?
The correct answer is B. 1
Question 15medium
What is CO2 commonly called?
The correct answer is A. Carbon dioxide
Question 16medium
Which element has the symbol K?
The correct answer is D. Potassium
Question 17medium
What is the most abundant element in the universe?
The correct answer is C. Hydrogen
Question 18medium
What is the chemical symbol for silver?
The correct answer is A. Ag
Question 19hard
What is the atomic number of helium?
The correct answer is B. 2
Question 20hard
Which element has the symbol Pb?
The correct answer is A. Lead
Question 21hard
What type of bond involves the sharing of electrons between atoms?
The correct answer is A. Covalent bond
Question 22hard
What is the chemical formula for table salt?
The correct answer is C. NaCl
Question 23hard
Which gas is the most abundant in Earth's atmosphere?
The correct answer is C. Nitrogen
Question 24hard
What is the chemical symbol for mercury?
The correct answer is A. Hg
Question 25hard
How many elements are in the periodic table as of standard modern chemistry?
The correct answer is B. 118
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