Edexcel International GCSE Chemistry
Edexcel International GCSE Chemistry Gases in the Atmosphere Exam Questions
Free Edexcel International GCSE Chemistry exam questions on Gases in the Atmosphere, with mark schemes. Covers composition of air, oxygen percentage, combustion and carbon dioxide.
Gases in the Atmosphere exam questions
These packs of real past exam questions cover the whole of Section 2: Inorganic Chemistry, including Gases in the Atmosphere. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
Edexcel IGCSE Chemistry 4CH1 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About Edexcel International GCSE Chemistry Gases in the Atmosphere
This sub-topic covers atmospheric gases.
What you need to know
- Composition Nitrogen, oxygen, argon and CO₂.
- Measuring oxygen Using copper or iron.
- Effects Combustion, acid rain and the greenhouse effect.
Common mistakes in Gases in the Atmosphere
- Wrong oxygen percentage.
- Mixing acid rain and global warming.
Try two Gases in the Atmosphere exam-style questions
1. State the percentage of oxygen in air. (1 mark)
Show the mark scheme answer
About 21%.
2. Give one effect of increased CO₂. (1 mark)
Show the mark scheme answer
Global warming.
Gases in the Atmosphere FAQs
What does this cover?
Gases in air and their effects.
Which practical links here?
Finding the percentage of oxygen in air.
Revise this topic with flashcards: Edexcel IGCSE Chemistry 4CH1 Flashcards, with mark scheme answers for Anki and Quizlet.
