Identification Of Common Gases (GCSE Chemistry)

Which apparatus is best for collecting a gas that is insoluble in water by downward delivery (displacement of air)?

When a gas bleaches damp blue litmus paper (causing it to lose colour) what gas is most likely present?

Which gas is collected most accurately using a gas syringe rather than collecting over water when the gas is slightly soluble in water?

Which property helps distinguish oxygen from chlorine in a simple lab test?

A carbonate reacts with dilute acid to produce a gas. Which test result would identify that gas as carbon dioxide?

Which gas, when tested, produces white fumes on contact with ammonia gas (NH3), forming a visible white smoke?

A damp blue litmus paper turns red when exposed to a gas. Which gas would give this result?

Which gas is produced when a metal carbonate is reacted with dilute acid and will extinguish a burning candle?

If a gas is collected over water, which factor must be considered to obtain its true pressure or moles?

A gas causes acidified potassium permanganate (purple) to decolourise to colourless or brownish depending on conditions; which gas is most likely responsible?

A sample of gas causes acidified potassium dichromate to change from orange to green. Which property best identifies it?