Basic Chemistry Knowledge Quiz

Chemistry

A collection of easy multiple-choice questions designed to test fundamental knowledge and factual recall in the field of chemistry.

chemistry science facts easy general knowledge

4 Questions Easy Ages 5+ Aug 3, 2026

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About this Study Set

This study set covers Chemistry through 4 practice questions. A collection of easy multiple-choice questions designed to test fundamental knowledge and factual recall in the field of chemistry. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 4 questions from the Basic Chemistry Knowledge Quiz study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the chemical symbol for water?

A H2O
B CO2
C O2
D NaCl

2 Which of these is a gas at room temperature?

A Water
B Wood
C Oxygen
D Iron

3 What is the smallest unit of a chemical element?

A Molecule
B Compound
C Atom
D Cell

4 Which element do plants primarily absorb from the air for photosynthesis?

A Oxygen
B Nitrogen
C Carbon Dioxide
D Hydrogen

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