About Chemistry Quiz #850
Chemistry Quiz #850 was the quiz for Friday, October 30, 2026: 10 questions: 3 easy, 4 medium and 3 hard. Everyone who played Chemistry Quiz that day got the same quiz, and it stays here to play for 60 days.
The questions of Chemistry Quiz #850
- What is the centre of an atom called?
- What is the chemical name for dry ice?
- What is a mixture of metals called?
- Which element is the most common gas in the air?
- Which method separates liquids by boiling and cooling the vapour?
- Which layer of gas high in the atmosphere protects us from UV rays?
- What is a substance that cannot be broken down into simpler substances by chemical reactions?
- Which French chemist named oxygen and hydrogen?
- Which element is often used to give fireworks a blue colour?
- What is the chemical formula for hydrochloric acid?
The answer options and the answers appear only when you play the quiz, one question at a time.
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Other days of Chemistry Quiz
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