Chemistry 0620 · IGCSE · Identification of ions and gases
Identification of ions and gases — practice question
The gases listed are shown below.
ammonia
carbon dioxide
carbon monoxide
ethene
fluorine
oxygen
sulfur dioxide
xenon
Use only gases from this list to answer the questions that follow.
Each gas may be selected once, more than once, or not at all.
(a)[1]
State the name of the gas that causes acid rain.
(b)[1]
State the name of the gas that forms an alkaline solution when dissolved in water.
(c)[1]
State the name of the inert gas.
(d)[1]
State the name of the gas produced as a product of photosynthesis.
(e)[1]
State the name of the gas that can form a polymer.
(f)[1]
State the name of the gas formed in the test for nitrate ions.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$\text{SO}_2$” …