Please write clearly in block capitals.
A-level
Centre Candidate
CHEMISTRY
number number
Paper 2 Organic and Physical Chemistry
Surname
Forename(s)
Candidate re Time allowed: 2 hours
signatu
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Booklet, provided as an insert (enclosed) Questio Mark
a ruler with millimetre measurements n
a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
3
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page. 4
Answer all questions. 5
You must answer the questions in the spaces provided. Do not 6
write outside the box around each page or on blank pages.
7
If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 8
All working must be shown. 9
Do all rough work in this book. Cross through any work 10
you do not want to be marked.
TOTAL
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 105.
*Jun227405201*
IB/M/Jun22/
E9
7405/2
, 2
Do not
write
Answer all questions in the spaces box
provided.
0 1 An acidified solution of butanone reacts with iodine as shown.
CH3CH2COCH3 + I2 → CH3CH2COCH2I + HI
0 1
.1 Draw the displayed formula for
CH3CH2COCH2I Give the name of
CH3CH2COCH2I
[2 marks]
Displayed formula
Name
*02
IB/M/
*
, 3
Do not
write
0 1 .2 The rate equation for the reaction is box
rate = k[CH3CH2COCH3]
[H+]
Table 1 shows the initial concentrations used in an
experiment.
Table 1
CH3CH2COCH3 I2 H+
Initial concentration / mol 4.35 0.0050 0.82
dm−3 0 5
The initial rate of reaction in this experiment is 1.45 ×10−4 mol dm−3
s−1 Calculate the value of the rate constant, k, for the reaction and
[3 marks]
give its units.
k
Units
0 1 .3 Calculate the initial rate of reaction when all of the initial concentrations are halved.
[1 mark]
Initial rate of reaction mol dm−3 s−1
*03
IB/M/
*
, 4
Do not
write
Question 1 continues on the next page
Turn over ►
*03
IB/M/
*
A-level
Centre Candidate
CHEMISTRY
number number
Paper 2 Organic and Physical Chemistry
Surname
Forename(s)
Candidate re Time allowed: 2 hours
signatu
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Booklet, provided as an insert (enclosed) Questio Mark
a ruler with millimetre measurements n
a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
3
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page. 4
Answer all questions. 5
You must answer the questions in the spaces provided. Do not 6
write outside the box around each page or on blank pages.
7
If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 8
All working must be shown. 9
Do all rough work in this book. Cross through any work 10
you do not want to be marked.
TOTAL
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 105.
*Jun227405201*
IB/M/Jun22/
E9
7405/2
, 2
Do not
write
Answer all questions in the spaces box
provided.
0 1 An acidified solution of butanone reacts with iodine as shown.
CH3CH2COCH3 + I2 → CH3CH2COCH2I + HI
0 1
.1 Draw the displayed formula for
CH3CH2COCH2I Give the name of
CH3CH2COCH2I
[2 marks]
Displayed formula
Name
*02
IB/M/
*
, 3
Do not
write
0 1 .2 The rate equation for the reaction is box
rate = k[CH3CH2COCH3]
[H+]
Table 1 shows the initial concentrations used in an
experiment.
Table 1
CH3CH2COCH3 I2 H+
Initial concentration / mol 4.35 0.0050 0.82
dm−3 0 5
The initial rate of reaction in this experiment is 1.45 ×10−4 mol dm−3
s−1 Calculate the value of the rate constant, k, for the reaction and
[3 marks]
give its units.
k
Units
0 1 .3 Calculate the initial rate of reaction when all of the initial concentrations are halved.
[1 mark]
Initial rate of reaction mol dm−3 s−1
*03
IB/M/
*
, 4
Do not
write
Question 1 continues on the next page
Turn over ►
*03
IB/M/
*
