IGCSE O Level Chemistry Practice Test 127
Collection of Gases Quiz Questions with Answers PDF Download - 127
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Collection of Gases Quiz with Answers PDF Download: MCQs 127
Gases denser than air do not include
- chlorine
- carbon dioxide
- hydrogen chloride
- ammonia
Valency of iron (Fe) is
- Fe+2 only
- Fe+3 only
- Fe+5
- Fe+2 and Fe+3
Turpentine is an example of
- strong electrolyte
- non-electrolyte
- weak electrolyte
- salt
The difficulty of discharge is highest in
- nitrate ions
- sulphate ions
- bromide ions
- chloride ions
Sugar cubes dissolve more slowly in hot drink than the granulated sugar because
- surface area of sugar cubes is less
- surface area of sugar is more
- sugar cubes are acidic
- sugar cubes are basic
IGCSE O Level Chemistry Exam Prep Tests
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