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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Identification Of Common Gases (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Identification Of Common Gases' from the broader topic Chemical Analysis. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

A sample of gas causes acidified potassium dichromate to change from orange to green. Which property best identifies it?
Which gas will turn aqueous barium hydroxide (or limewater) cloudy as a solid precipitate forms when bubbled through it?
If a gas is collected over water, which factor must be considered to obtain its true pressure or moles?
When testing for hydrogen gas, which observation is expected?
Which apparatus is best for collecting a gas that is insoluble in water by downward delivery (displacement of air)?
Which gas turns damp blue litmus paper red and can be detected by forming white fumes with concentrated ammonia solution?
Which gas gives a characteristic “squeaky pop” when a lit splint is held at the mouth of a test tube?
When a gas bleaches damp blue litmus paper (causing it to lose colour) what gas is most likely present?
A damp blue litmus paper turns red when exposed to a gas. Which gas would give this result?
Which gas identification method is safest and instrumentally reliable for detecting low concentrations of methane in air?
Which gas is colourless, heavier than air, and will extinguish a flame if present in a container?