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1 Propanoic acid is treated with reagent X at room temperature. The organic product of the reaction
is sodium propanoate. No gas is produced during the reaction.
What could be reagent X?
A NaHCO3(aq) B NaOH(aq) C Na2CO3(aq) D Na2SO4(aq)
2 The ionic equation shows iodide ions reacting with manganate(VII) ions in acidic solution.
– + – 2+
uMnO4 + vH + wI → xMn + yH2O + zI2
The letters u, v, w, x, y and z all represent whole numbers. Two or more of u, v, w, x, y and z are
the same as each other.
What is the lowest possible value of v ?
A 2 B 8 C 10 D 16
3 A piece of rock has a mass of 2.00 g. It contains calcium carbonate, but no other basic substances.
3 –3
It neutralises exactly 36.0 cm of 0.500 mol dm hydrochloric acid.
What is the percentage by mass of calcium carbonate in the 2.00 g piece of rock?
A 22.5% B 45.0% C 72.0% D 90.1%
4 L and M are elements in Period 3 of the Periodic Table. Neither element is argon.
Information about the Pauling electronegativity values of L and M is given.
element Pauling electronegativity value
L the highest of the seven elements Na to Cl
M the lowest of the seven elements Na to Cl
Three statements about elements L and M are given.
1 Element L contains covalent bonds.
2 Element L has a higher atomic number than element M.
3 A compound of L and M contains ionic bonds.
Which statements are correct?
A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only
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5 Ammonia reacts with acids to form the ammonium ion.
Which row is correct?
+ bond angle
shape of NH4 +
in NH4 / °
A pyramidal 107
B pyramidal 109.5
C tetrahedral 107
D tetrahedral 109.5
6 Electronegativity differences can be used to help determine the oxidation number of an atom in
different species. A number of rules are used which include:
• Themoreelectronegativeatomisgivenanegativeoxidationnumber.
• HydrogenismoreelectronegativethanGroup1metals.
• Oxygenismoreelectronegativethanhydrogen.
A → 7 ✓ ✗
B → ✓ ✓
C → ✓ ✓
D → ✓ ✗
7
A B C D
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1 Propanoic acid is treated with reagent X at room temperature. The organic product of the reaction
is sodium propanoate. No gas is produced during the reaction.
What could be reagent X?
A NaHCO3(aq) B NaOH(aq) C Na2CO3(aq) D Na2SO4(aq)
2 The ionic equation shows iodide ions reacting with manganate(VII) ions in acidic solution.
– + – 2+
uMnO4 + vH + wI → xMn + yH2O + zI2
The letters u, v, w, x, y and z all represent whole numbers. Two or more of u, v, w, x, y and z are
the same as each other.
What is the lowest possible value of v ?
A 2 B 8 C 10 D 16
3 A piece of rock has a mass of 2.00 g. It contains calcium carbonate, but no other basic substances.
3 –3
It neutralises exactly 36.0 cm of 0.500 mol dm hydrochloric acid.
What is the percentage by mass of calcium carbonate in the 2.00 g piece of rock?
A 22.5% B 45.0% C 72.0% D 90.1%
4 L and M are elements in Period 3 of the Periodic Table. Neither element is argon.
Information about the Pauling electronegativity values of L and M is given.
element Pauling electronegativity value
L the highest of the seven elements Na to Cl
M the lowest of the seven elements Na to Cl
Three statements about elements L and M are given.
1 Element L contains covalent bonds.
2 Element L has a higher atomic number than element M.
3 A compound of L and M contains ionic bonds.
Which statements are correct?
A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only
8&/(6
0-
, 3
5 Ammonia reacts with acids to form the ammonium ion.
Which row is correct?
+ bond angle
shape of NH4 +
in NH4 / °
A pyramidal 107
B pyramidal 109.5
C tetrahedral 107
D tetrahedral 109.5
6 Electronegativity differences can be used to help determine the oxidation number of an atom in
different species. A number of rules are used which include:
• Themoreelectronegativeatomisgivenanegativeoxidationnumber.
• HydrogenismoreelectronegativethanGroup1metals.
• Oxygenismoreelectronegativethanhydrogen.
A → 7 ✓ ✗
B → ✓ ✓
C → ✓ ✓
D → ✓ ✗
7
A B C D
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