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Course: Edexcel Igcse Chemistry Modular — UNIT 2
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Edexcel Igcse Chemistry Modular — UNIT 2

Unit 2 · Bonding & Electrolysis

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Unit 2 · Inorganic Chemistry

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Unit 2 · Physical Chemistry

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Unit 2 · Organic Chemistry

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Quiz

Gases in the atmosphere – Check yourself

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Gases in the atmosphere Edexcel O Level Modular Chemistry check yourself quiz: free practice for Edexcel Modular – OL (chemistry). Work through this Gases in the atmosphere Edexcel O Level Modular Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 2c Gases in the atmosphere — Notes lesson. More practice: Edexcel Modular – OL (chemistry) — all units. Syllabus: Pearson Edexcel International GCSEs.

  • Questions count: 9
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
What is the approximate percentage of nitrogen in dry air?
21%
0.9%
78%
0.04%
2.
When copper is heated in air it turns black. Which substance forms?
Copper(II) oxide
Copper(II) carbonate
Copper nitride
Copper hydroxide
3.
Sulfur dioxide dissolves in water containing universal indicator. What pH is likely?
pH 7
pH 11
pH 14
pH 3
4.
Which equation shows the thermal decomposition of copper(II) carbonate?
CuCO3 → Cu + CO3
CuCO3 → CuO + CO2
CuCO3 + O2 → CuO + CO2
CuCO3 → CuO + CO
5.
Why do greenhouse gases warm the Earth?
They absorb ultraviolet radiation from the Sun
They reflect all sunlight back into space
They absorb and re-emit infrared radiation from the Earth's surface
They destroy the ozone layer
6.
Which statement best describes Climate change?
Long-term change in global weather patterns, linked to rising average global temperature.
A gas, such as carbon dioxide or methane, that absorbs and re-emits infrared radiation, warming the atmosphere.
A noble gas making up just under 1% of dry air.
An unreactive gas making up about 78% of dry air by volume.
7.
Which statement best describes Nitrogen?
A compound formed when an element combines with oxygen.
An unreactive gas making up about 78% of dry air by volume.
A gas, such as carbon dioxide or methane, that absorbs and re-emits infrared radiation, warming the atmosphere.
The breaking down of a compound into simpler substances by heating.
8.
Which statement best describes Oxygen?
A reactive gas making up about 21% of dry air; needed for combustion and respiration.
A noble gas making up just under 1% of dry air.
The layer of gases surrounding the Earth, held in place by gravity.
The breaking down of a compound into simpler substances by heating.
9.
Which statement best describes Thermal decomposition?
Long-term change in global weather patterns, linked to rising average global temperature.
A gas, such as carbon dioxide or methane, that absorbs and re-emits infrared radiation, warming the atmosphere.
The breaking down of a compound into simpler substances by heating.
A reactive gas making up about 21% of dry air; needed for combustion and respiration.
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Part of Unit 2 · Inorganic Chemistry — see every lesson and quiz in this unit.
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