IGCSE O Level Chemistry Practice Test 97
Collection of Gases Quiz Questions and Answers PDF Download - 97
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Collection of Gases Questions and Answers PDF Download: MCQ 97
Gases denser than air include
- carbon dioxide
- oxygen
- hydrogen
- ammonia
To separate components of liquid air, the useful procedure is
- centrifugation
- separating funnel
- fractional distillation
- simple distillation
A poisonous gas released in exhaust fumes is
- SO2
- CO2
- CO
- P2O5
An effective way of purifying liquids containing suspensions is
- crystallization
- decanting
- centrifuging
- separating funnel
What is correct about covalent compounds?
- they are not made of ions
- they are not formed through exchange of electrons
- they are bad conductor of electricity
- all of above
IGCSE O Level Chemistry Exam Prep Tests
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