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Exam (elaborations)

OFFICIAL MAY 2024 PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY ADVANCED SUBSIDIARY PAPER 1 8CHO/01 MERGED QUESTION PAPER AND MARKING SCHEME

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OFFICIAL MAY 2024 PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY ADVANCED SUBSIDIARY PAPER 1 8CHO/01 MERGED QUESTION PAPER AND MARKING SCHEME

Institution
PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY ADVANCED
Course
PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY ADVANCED

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MERGED QUESTION PAPER> MARK SCHEME> 100% GUARANTEE




Candidate surname Other names


Centre Number Candidate Number




Paper


Chemistry ■ ■


Advanced Subsidiary
PAPER 1: Core Inorganic and Physical Chemistry

Marks
Scientific calculator, Data Booklet



Instructions
Use black ink or ball‑point pen.
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
centre number and candidate number.

Answer the questions in the spaces provided
– there may be more space than you need.

Information

• The total mark for this paper is 80.
– use this as a guide as to how much time to spend on each question.
For the question marked with an asterisk (*), marks will be awarded for your
ability to structure your answer logically, showing the points that you make are
related or follow on from each other where appropriate.
A Periodic Table is printed on the back cover of this paper.

Advice
• Show all your
Read each working
question in calculations
carefully andstart
before you include units where
to answer it. appropriate.

• Check your answers if you have time at the end. Turn over


P76893A
©2024 Pearson Education Ltd.
F:1/1/1/

, Answer ALL questions.

Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .

1 What is the electronic configuration of the phosphide ion, 31P3– ?

A 1s22s22p63s23p3

B 1s22s22p63s23p6

C 1s22s22p63s2

D 1s22s22p63p6

(Total for Question 1 = 1 mark)

2 Which could be the first four successive ionisation energies, in kJ mol−1 , of a
Group 4 element?

A 496 4563 6913 9544

B 900 1757 14 849 21 007

C 801 2427 3610 25 026

D 1086 2353 4621 6223
(Total for Question 2 = 1 mark)

3 Which pair of responses show the trend in atomic radii of atoms, excluding the
noble gases (Group 0)?


Trend down Group 2

A increasing increasing

B increasing decreasing

C decreasing decreasing

D decreasing increasing

(Total for Question 3 = 1 mark)




2

,MERGED QUESTION PAPER> MARK SCHEME> 100% GUARANTEE



■■■■

, 4 A student was provided with three aqueous solutions of potassium chloride,
potassium bromide and potassium iodide.
To identify the halide present, dilute nitric acid and silver nitrate solution were added
to each of the three solutions.
(a) (i) Give the observations that the student would make in each case.
(3)

KC l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............



KBr . . . ... .. .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. . . . .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. . .. .. ... .. .. ... .. .. . ............



KI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...............



(ii) Describe how the student could confirm the halide ions present in the
products of (a)(i) by adding ammonia solutions.
(3)

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■■■■

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Institution
PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY ADVANCED
Course
PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY ADVANCED

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Number of pages
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Written in
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Type
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