Chemistry · Oct / Nov 2021 · Paper 62 · Question 1
0620
As printed in the paper
The question as text
Carbon dioxide is a colourless gas that is denser than air. Carbon dioxide can be made by reacting marble chips with dilute hydrochloric acid. A student tried to make and collect carbon dioxide gas using the apparatus shown. A C B gas jar
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)(i)[1]
A (dilute) hydrochloric acid
and
B marble chips
1(a)(ii)[1]
(conical) flask
1(b)[2]
M1 (carbon dioxide) is denser than air
M2 drops out of gas jar
1(c)[2]
M1 shows collection over water / in a gas syringe
M2 in a measuring cylinder / graduations shown on collection vessel
1(d)[3]
M1 filter
M2 wash
M3 dry and weigh
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.