Chemistry 5070 · O Level · Identification of ions and gases
Identification of ions and gases — practice question
Solid $L$ consists of a mixture of two compounds. Both compounds have the same cation, but their anions are different.
(a(i))[1]
What inference can be drawn from the solution being colourless?
(a(ii))[2]
Give a test and observation for identifying carbon dioxide gas.
(a(iii))[1]
Identify the anion that reacts with hydrochloric acid to give carbon dioxide gas.
(b-c)[4]
Complete the table for tests (b) and (c) so that the ions present in $L$ can be determined.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “No ions/compound of a transition metal/element are present” …