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Year 13 synoptic questions
By Phoenix Hoyle
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Last updated over 1 year ago
15 questions
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Question 1
1.
Give chemical explanations for the following statements:
Bromine has a higher boiling point than chlorine.
Question 2
2.
Give chemical explanations for the following statements:
A carton of milk expands on freezing.
Question 3
3.
Give chemical explanations for the following statements:
Potassium is placed immediately after argon in the periodic table.
Question 4
4.
Give chemical explanations for the following statements:
The reaction of ethane with chlorine under UV radiation is a poor method for preparing a high yield of chloroethane.
Question 5
5.
Give chemical explanations for the following statements:
Water has a concentration of approximately 56 mol dm
-3
Question 6
6.
Give chemical explanations for the following statements:
IR spectroscopy distinguishes ketones from carboxylic acids.
Question 7
7.
Give chemical explanations for the following statements:
1.323 g of N
2
O(g) has a volume of 1.00 dm
3
at 100 kPa and 400 K.
Calculation required
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Question 8
8.
Give chemical explanations for the following statements:
4.25 g of C
6
H
5
COOCH
3
contains 1.88 × 10
22
molecules.
Calculation required
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Question 9
9.
Give chemical explanations for the following statements:
The rate of hydrolysis of 1-bromobutane is faster than that of 1-chlorobutane.
Question 10
10.
The H–O–H bond angle in ice is about 109° but about 105° in gaseous H
2
O.Explain why there is this difference.
(Hint - ignore responses about open lattice/tetrahedral structure in ice).
Question 11
11.
Methane makes up about 13.4% of the mass of ‘methane hydrate’
Determine the formula of ‘methane hydrate’, CH4•xH2O. to 2 d.p.
calculate x
Question 12
12.
There is no need to add the dm
3
Question 13
13.
explain how chemical tests would allow each compound to be distinguished from the other
compounds.
Details of apparatus and quantities are not required.
B
C
D
E
F
G
Bromine
(H+
/
)Cr
2
O
7
2–
2,4-DNPH
Tollen's
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Question 14
14.
Other Answer Choices:
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Doublet
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Triplet
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Singlet
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Quartet
Question 15
15.
Determine and draw a possible structure for monoprotic organic acid D based on the following information:
Hint Benzene undergoes electrophylic substitution
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