11 mark
Phosphane, PH3, can react with a hydrogen ion, H+, to form the phosphonium ion.
Which type of bond is formed in this reaction?
Permanent dipole-dipole
Hydrogen bond
Ionic bond
Dative covalent bond
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Types of Bonding & Properties (AQA AS Chemistry)
Exam Questions
4 hours44 questions
21 mark
Below are four solids. Which of these contains more than one kind of bonding?
Ice
Sodium chloride
Magnesium
Diamond
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31 mark
Which of these atoms is most electronegative?
Br
Mg
Cl
Li
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41 mark
Which of the following compounds is not bonded ionically?
CH3OH
MgCO3
LiOH
BaCl2
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51 mark
What is the correct formula for ammonium carbonate?
NH3CO3
NH4CO3
(NH4)2CO3
(NH4)3CO3
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61 mark
Which statement about the electrical conductivity of sodium sulfide is correct?
It conducts when solid and liquid
It conducts when solid but not when liquid
It conducts when liquid but not when solid
It does not conduct when liquid or solid
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71 mark
Which of the following contains a dative covalent bond?
N2
NH3
CN-
NH4+
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81 mark
Magnesium oxide has a very high melting temperature.
Which of the following is the best description of its structure and bonding?
Giant ionic
Giant metallic
Macromolecular
Simple molecular
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91 mark
Graphite has a structure containing layers of carbon atoms in hexagonal rings.
Why is graphite a good conductor of electricity?
It has delocalised ions which can move and carry charge.
It has delocalised electrons which are mobile.
There are only weak London forces between the layers.
Each carbon atom in the layers has only three covalent bonds.
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101 mark
Which crystal structure does not conduct electricity when solid, has a high melting point and can conduct electricity when molten?
Giant metallic
Giant ionic
Macromolecular
Simple molecular
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11 mark
Which of the following compounds has both covalent and ionic bonds?
calcium chloride, CaCl2
lithium carbonate, Li2CO3
butanoic acid, CH3CH2CH2COOH
dibromomethane, CH2Br2
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21 mark
Which of the following statements about graphite are correct?
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The carbon atoms are joined together by three covalent bonds |
Graphite contains delocalised electrons |
The C-C-C bond angle is 109.5 |
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A |
✓ |
✓ |
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B |
✓ |
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C |
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D |
⨯ |
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✓ |
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31 mark
Of the four structures listed below which one has the highest melting point?
Mg
NaO
O2
C (graphite)
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41 mark
Which statement below shows the correct information about diamond and graphite?
diamond and graphite both conduct electricity due to delocalised electrons in their structure
the bond angles in the two structures are not the same
diamond is macromolecular and graphite is simple molecular
all the valence electrons are covalently bonded in both graphite and diamond
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51 mark
Which of the following metals would have the highest melting point?
Na
Mg
K
Al
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61 mark
A table of four substances and their physical properties is shown.
|
Substance |
electrical conductivity of aqueous solution |
electrical conductivity of molten substance |
electrical conductivity of solid |
melting point / °C |
boiling point / °C |
|
Diamond NaCl Mg I2 |
insoluble insoluble n/a poor |
poor good good poor |
poor good good poor |
3550 801 150 114 |
4830 1465 310 183 |
Which substances have the correct properties?
Diamond and I2
NaCl
I2 and Mg
Mg
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71 mark
The melting points of elements in period 3 are shown below.
Why does sulfur have a higher melting point than phosphorus?
Sulfur has a giant macromolecular structure
Sulfur has more electrons so greater permanent dipole-dipole interactions
Sulfur has more electrons so greater van der Waals forces
Sulfur has a greater nuclear charge
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81 mark
Sodium chloride is an ionic compound.
When can sodium chloride conduct electricity?
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Solid |
Molten |
Aqueous |
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A |
✓ |
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B |
✓ |
⨯ |
✓ |
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C |
⨯ |
✓ |
✓ |
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D |
⨯ |
⨯ |
✓ |
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91 mark
Element X forms a carbonate with the formula X2CO3.
Which of these could represent the shorthand electron configuration of an atom of X?
[Ne] 3s1
[Ne] 3s2
[Ne] 3s1 3p2
[Ne]
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11 mark
In which series of compounds does covalent character increase when going from left to right?
KI, KBr, KCl
NaI, KI, RbI
NaCl, MgCl2, AlCl3
SO2, P4O10, SiO2
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21 mark
Which is the shortest bond length in the following gases?
Oxygen-oxygen in oxygen gas, O2
Nitrogen-nitrogen in nitrogen gas, N2
Carbon-carbon in ethyne gas, C2H2
Oxygen-oxygen in ozone gas, O3
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31 mark
Sodium and magnesium are both period 3 elements.
Compared to sodium, why is magnesium less reactive?
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Magnesium has a smaller atomic radius |
Magnesium has a larger nuclear charge |
Stronger nuclear attraction for electrons |
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A |
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B |
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⨯ |
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C |
⨯ |
⨯ |
✓ |
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D |
✓ |
✓ |
⨯ |
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41 mark
Which compounds have an ionic lattice structure in the solid state?
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Silicon dioxide |
Ammonium sulfate |
Potassium iodide |
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A |
✓ |
✓ |
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B |
✓ |
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C |
⨯ |
✓ |
✓ |
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D |
⨯ |
⨯ |
✓ |
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51 mark
Element D forms a phosphate with formula DPO4.
Which of these could represent the electronic configuration of an atom of D?
[Ne]3s1
[Ne]3s2
[Ne]3s23p1
[Ne]3s13p2
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61 mark
Which of the following molecules does not contain a double bond?
CO2
C2Cl4
C2H2Cl2
C3F8
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71 mark
Which of the following reactions involves the donation of an electron pair?
½Br2 + I- → Br- +½I2
2Na+ + O2- → Na2O
C + O2 → CO2
BF3 + F- → BF4-
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81 mark
The nitrate (V) ion, NO3-, is a polyatomic ion, bonded by covalent bonds.
Which of the following shows the correct displayed formula for the nitrate ion?
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91 mark
Which of the following does not contain a triple bond?
SO42-
CO
N2
CN-
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101 mark
What properties best describe the structure and bonding present in hydrogen fluoride?
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Localised covalent bonds |
High solubility in polar solvents |
H-F bond has the lowest bond enthalpy out of Group 7 hydrides |
Highest boiling point out of Group 7 hydrides |
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A |
⨯ |
✓ |
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✓ |
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B |
✓ |
✓ |
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✓ |
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C |
⨯ |
✓ |
✓ |
✓ |
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D |
⨯ |
⨯ |
✓ |
⨯ |
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