All chapters
Chemistry 5070 · Cambridge (CAIE) O Level
Air Composition
2 past-paper questions on Air Composition · examined 2025–2025.
20252 questions
5070/12 · O/N · Q29 [1]Sign up to mark my answer →
Dry air is a mixture of gases. 99% of the mixture is nitrogen and oxygen. What is in the highest abundance in the remaining 1%?
5070/12 · O/N · Q29 [1]Sign up to mark my answer →
Dry air is a mixture of gases. 99% of the mixture is nitrogen and oxygen. What is in the highest abundance in the remaining 1%?
Go Pro to download this chapter as a topical PDF and search by AI.
AI Examiner
Don't just read the solution — get your own answer marked
Write your answer to any Chemistry past-paper question, photograph it, and Learning DEN marks it like a real examiner — marks awarded, where you lost them, and your predicted grade. 3 free gradings to start.