Cambridge International AS & A Level
* 2 5 6 3 6 1 9 2 8 2 *
CHEMISTRY 9701/41
Paper 4 A Level Structured Questions May/June 2023
2 hours
You must answer on the question paper.
No additional materials are needed.
INSTRUCTIONS
● Answer all questions.
● Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs.
● Write your name, centre number and candidate number in the boxes at the top of the page.
● Write your answer to each question in the space provided.
● Do not use an erasable pen or correction fluid.
● Do not write on any bar codes.
● You may use a calculator.
● You should show all your working and use appropriate units.
INFORMATION
● The total mark for this paper is 100.
● The number of marks for each question or part question is shown in brackets [ ].
● The Periodic Table is printed in the question paper.
● Important values, constants and standards are printed in the question paper.
This document has 28 pages. Any blank pages are indicated.
An aqueous solution containing [CaEDTA]2– is added to a solution containing equal
concentrations of Cr 3+(aq), Fe3+(aq) and Pb2+(aq). The resulting mixture is left to reach
a state of equilibrium.
State the type of reaction when [CaEDTA]2– reacts with Cr 3+(aq), Fe3+(aq) and Pb2+(aq).
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