Advanced level 2023 south west regional mock chemistry 1
Advanced level 2023 south west regional mock chemistry 1
Which of the following is a step m the
manufacture of sulphuric acid? .
A. Reactingsulphuric acid with ammon
logive sulphate fertilizers
B. Dissolving sulphur trioxide in water
logive oleum
C. Burning of sulphur dioxide to
givesulphur trioxide
D. Catalytic oxidation of oleum to
givesulphuric acid
8. What would you observe when a piece of
sodium is dropped in ethanol?
A. The sodium dissolves and
finallydisappears
B. Effervescence occurs and a pungent gas
isevolved
C. The resulting solution turns red
litmuspaper blue
D. Sodium hydroxide is produced
insolution.
QUESTIONS 33 – 35
Instructions:
Each question is I ‘ollowed by four responses
numbered 1-4. One responses or more of
these is (are) correct. Decide which
responses is (are) correct then choose
A. If only 1, 2, and 3 are correct
B. If only 1 and 3 are correct
C. If only 2 and 4 arc correct
D. If only 4 is correct.
36. You are given the equation:
CuCOi + H2S04 CuS04+ COi + H2O
What volume ofO.lM Sulphunc acid would be
required to react exactly with 1.24 g ofXoppor(ll)
carbonate (Molar mass of CuSOj – l 60g/mol)
A. 5 cm^
B. 100 cm3
C. 10 cm3
D. 50cm3
37. Identify a substance that gi ‘. ;s only one
gaseous product on heating.
A. Sodium nitrate
B. Calcium nitrate
C. Magnesium nitrate
D. Potassium carbonate
INSTRUCnOiSIS
SUMMARIZED
A B C D
1,2,3 1,3 2,4 4
Onlv only Only Only
33. In which reaction is the
utiderlinedsubstancc oxidised?
1 . ZnO + C
2Fe2+ + Ch->2Fe3+ 4- 2Ch
C2H6
CO2
QUESTIONS 38- 39
Excess Magnesium ribbon reacts with dil HC!
acid to give a salt.
38. Why is the magnesium used in excess?
A. To increase the yield of the salt
B. To ensure the salt is pure
C. To ensure complete reaction
D. The ribbon is cut into many pieces
Zn + CO
2.
4. C + 02
ABCD
34. An element, W, has electronic
configuration 2, 8, 7. Which of the
following isTRUE of W? . ‘
1. W forms a basic oxide
2. An atom of W has 17 protons
3. W belongs to group III
4. The atoms of W are covalently
bonded.
39. How is the pure salt crystals easily
recovered from the salt solution?
A. By evaporation to dryness
B. Concentrate and cool solution to
£
crystallize
C. By simple filtration using filter paper
D. By washing with distilled water
A
40. The method used to separate water from0
mixture of kerosene and water
A. Filtration
B . Simple Distillation
C. Use of separating funnel
D. Crystallization
BCD
35. Which of the following gases would
turnmoist blue litmus paper red?
1. Carbon dioxide
2. Hydrogen chloride
3. Sulphur dioxide
4. Ammonia gas
4 ! . Identify the 2 main raw materials used to
make soap
A. Sodium chloride and caustic soda
B. Sodium chloride, fats and oils
C. Caustic soda, fats and oils
13. ( ilycerol, caustic soda and fatty aci
ABCD
