Monday 13 June 2022 – Morning
A Level Chemistry B (Salters)
H433/01 Fundamentals of Chemistry
Time allowed: 2 hours 15 minutes
You must have:
* 9 1 0 1 9 6 2 3 0 5 *
• the Data Sheet for Chemistry B
You can use:
• a scientific or graphical calculator
• an HB pencil
* H 4 3 3 0 1 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 110.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 36 pages.
ADVICE
• Read each question carefully before you start your answer.
, 3
3 The bar chart shows the melting points of the elements in Periods 2 and 3.
What is the correct reason for the large decrease in melting point after Group 14 in both Periods?
C
4000 Period 2
Period 3
3000
B
Melting
point / K 2000
Si
Be
Mg Al
1000
Li
Na S
P
Cl
N O F Ne Ar
0
1 2 13 14 15 16 17 18
Group
A The bonding of the elements changes from metallic to covalent.
B The elements change from metals to non-metals.
C The structure and bonding of the elements change from ionic to simple molecular.
D The structure of the elements changes from giant to molecular.
Your answer [1]
4 What is the correct bond angle in the ammonia molecule?
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