Which of the following cannot be broken down into simpler substances by chemical reactions?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A Water
B Sodium chloride
C Sugar
D Oxygen

Show answer and explanation

Answer: D. Oxygen

Answer: d) Oxygen
Explanation: Oxygen is an element. Elements consist of only one type of atom and cannot be broken down, whereas water, salt, and sugar are compounds.

Answering after opening this box earns no Practice Points.

Rules for asking and answering

Which of the following cannot be broken down into simpler substances by chemical reactions?

More questions like this