PMT
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Monday 20 May 2019 Morning Time allowed: 1 hour 30 minutes
Materials
For Examiner’s Use
For this paper you must have:
• the Periodic Table/Data Sheet, provided as an insert (enclosed) Question Mark
• a ruler with millimetre measurements
1
• a scientific calculator, which you are expected to use where appropriate.
2
Instructions 3
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages. 7
• All working must be shown. 8
• Do all rough work in this book. Cross through any work you do not
want to be marked. Section B
TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN197404101*
IB/G/Jun19/E10 7404/1
, PMT
2
Do not write
outside the
There are no questions printed on this page box
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
*02*
IB/G/Jun19/7404/1
, PMT
3
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about compounds that contain fluorine.
0 1 . 1 Sodium fluoride contains sodium ions (Na+) and fluoride ions (F–).
Na+ and F– have the same electron configuration.
Explain why a fluoride ion is larger than a sodium ion.
[2 marks]
0 1 . 2 Explain, in terms of structure and bonding, why the melting point of sodium fluoride is
high.
[2 marks]
Question 1 continues on the next page
Turn over ►
*03*
IB/G/Jun19/7404/1
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Monday 20 May 2019 Morning Time allowed: 1 hour 30 minutes
Materials
For Examiner’s Use
For this paper you must have:
• the Periodic Table/Data Sheet, provided as an insert (enclosed) Question Mark
• a ruler with millimetre measurements
1
• a scientific calculator, which you are expected to use where appropriate.
2
Instructions 3
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages. 7
• All working must be shown. 8
• Do all rough work in this book. Cross through any work you do not
want to be marked. Section B
TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN197404101*
IB/G/Jun19/E10 7404/1
, PMT
2
Do not write
outside the
There are no questions printed on this page box
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
*02*
IB/G/Jun19/7404/1
, PMT
3
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about compounds that contain fluorine.
0 1 . 1 Sodium fluoride contains sodium ions (Na+) and fluoride ions (F–).
Na+ and F– have the same electron configuration.
Explain why a fluoride ion is larger than a sodium ion.
[2 marks]
0 1 . 2 Explain, in terms of structure and bonding, why the melting point of sodium fluoride is
high.
[2 marks]
Question 1 continues on the next page
Turn over ►
*03*
IB/G/Jun19/7404/1
