Chemistry 0620 · IGCSE · Solids, liquids and gases
Solids, liquids and gases — practice question
This question concerns solids and gases.
The list names eight substances that are gases at room temperature.
ammonia
butane
carbon dioxide
carbon monoxide
chlorine
methane
propene
sulfur dioxide
Answer the questions that follow about these gases.
Each gas can be used once, more than once, or not at all.
(a(i))[1]
State which gas is the poisonous substance produced when carbon burns incompletely.
(a(ii))[1]
State which gas in the list is an alkene.
(a(iii))[1]
State which gas is released when limestone is thermally decomposed.
(a(iv))[1]
State which gas in the list is an element.
(a(v))[1]
State which gas is responsible for acid rain.
(b(i))[2]
What is meant by the term sublimation?
(b(ii))[4]
Use the kinetic particle model to describe the motion of the particles and the space between them in solid carbon dioxide and carbon dioxide gas.
Worked solution & mark scheme
This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: “carbon monoxide (CO)” …