Chemistry Basics Quiz MCQ Practice
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1. The smallest unit of an element that retains its chemical properties is the:
- A. Molecule
- B. Compound
- C. Atom
- D. Ion only
Answer: Atom
Explanation: Atom — verified fact for Chemistry Basics Quiz.
2. The pH scale ranges from 0 to 14; a pH of 7 is considered:
- A. Undefined
- B. Strongly acidic
- C. Neutral
- D. Strongly basic
Answer: Neutral
Explanation: Neutral — verified fact for Chemistry Basics Quiz.
3. Water's chemical formula is:
- A. NaCl
- B. O2
- C. H2O
- D. CO2
Answer: H2O
Explanation: H2O — verified fact for Chemistry Basics Quiz.
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