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Chemistry 5070 · Cambridge (CAIE) O Level
Gas Preparation and Collection
1 past-paper question on Gas Preparation and Collection · examined 2022–2022.
20221 question
5070/12 · O/N · Q2 [1]Sign up to mark my answer →
When iron reacts with dilute hydrochloric acid, hydrogen is formed. Impurities in the iron mean that some hydrogen sulfide gas is also formed. Hydrogen sulfide gas is soluble in water. Water vapour can be removed from a mixture of gases using concentrated sulfuric acid. Which diagram shows apparatus suitable to prepare a pure, dry sample of hydrogen?
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