Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 1: Structure, Bonding and Introduction to Organic Chemistry QP JANUARY 2024

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Pearson Edexcel International Advanced Level
Wednesday 10 January 2024
Morning (Time: 1 hour 30 minutes) Paper
reference WCH11/01
Chemistry ⯁ ⯁


International Advanced Subsidiary/Advanced Level
UNIT 1: Structure, Bonding and Introduction to
Organic Chemistry

You must have: Total Marks
Scientific calculator, ruler



Instructions
•• Use black ink or ball‑point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• centre
Fill in the boxesand
number at the top of this
candidate page with your name,
number.

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

Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• You will be assessed on your ability to organise and present information, ideas,
descriptions and arguments clearly and logically, including your use of grammar,
punctuation and spelling.
• A Periodic Table is printed on the back cover of this paper.

Advice
• Read each question carefully before you start to answer it.
• Show all your working in calculations and include units where appropriate.
•• Try to answer every question.
Check your answers if you have time at the end.
Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 1:
Structure, Bonding and Introduction to Organic Chemistry QP JANUARY 2024 Turn over


P73455A
©2024 Pearson Education Ltd.
S:1/1/1/1/

, SECTION A
Answer ALL the questions in this section.




DO NOT WRITE IN THIS AREA
You should aim to spend no more than 20 minutes on this section.
For each question, select one answer from A to D and put a cross in the box . If you change
your mind, put a line through the box and then mark your new answer with a cross .
1 The first ionisation energies of four successive elements in the Periodic Table
are shown.

Element P Q R S

First ionisation energy / kJ mol−1 1251 1521 419 590


(a) Which element has atoms with a full outer shell of electrons?
A element P

B element Q




DO NOT WRITE IN THIS AREA
C element R

D element S

(b) Which element could be X in a gaseous covalent compound with the formula HX?

A element P

B element Q

C element R

D element S
(c) Which element could be Y in an ionic compound with the formula YF2?

A element P

B element Q DO NOT WRITE IN THIS AREA

C element R

D element S

(d) Which element has atoms with the largest atomic radius?
A element P

B element Q

C element R
D element S

(Total for Question 1 = 4 marks)


2
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, 2 Which diagram represents the electronic structure of a nitrogen atom?


1s 2s 2p
DO NOT WRITE IN THIS AREA




A     
B    
C     
D    

(Total for Question 2 = 1 mark)

3 Which species does not contain a total of 16 neutrons?

A a molecule of ethene, 12C 21H4
B a molecule of oxygen, 16O2
C an atom of silicon, 30Si
DO NOT WRITE IN THIS AREA




D an ion of sulfur, 32S2−
(Total for Question 3 = 1 mark)

4 Each response gives the atomic numbers of two elements.
Which pair of atomic numbers are those of elements that are in different blocks of the
Periodic Table?

A 5, 9

B 10, 16
C 13, 18

D 16, 20

(Total for Question 4 = 1 mark)
DO NOT WRITE IN THIS AREA




5 Which molecule is polar?

A CO2(g)
B CCl4(g)

C BeCl2(g)

D NH3(g)
(Total for Question 5 = 1 mark)




3
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