11 mark
Phosphine, PH3, can react with a hydrogen ion, H+, to form the phosphonium ion.
Which type of bond is formed in this reaction?
dipole-dipole forces
dative covalent bond
ionic bond
hydrogen bond
Did this page help you?
Syllabus Edition
First teaching 2014
Last exams 2024
|
Ionic & Covalent Bonding (DP IB Chemistry: SL)
Exam Questions
2 hours45 questions21 mark
Silver and iodine are both shiny crystalline solids.
Which forces exist between neighbouring iodine molecules in solid iodine and particles in solid silver?
|
|
iodine |
silver |
|
A |
metallic bonds |
covalent bonds |
|
B |
ionic bonds |
metallic |
|
C |
covalent bonds |
covalent bonds |
|
D |
London dispersion forces |
metallic |
Did this page help you?
31 mark
Below are four solids. Which of these contains more than one kind of bonding?
diamond
sodium chloride
iron
ice
Did this page help you?
41 mark
Which of the following statements about ions and ionic compounds are true?
- Nitrogen can form a 3- ion
- Potassium can form a cation
- The formula for aluminium chloride is AlCl2
I and II only
I and III only
II and III only
I, II and III
Did this page help you?
51 mark
What is the correct formula for ammonium carbonate?
NH3CO3
NH4CO3
(NH4)2CO3
(NH4)3CO3
Did this page help you?
61 mark
In acidic conditions, ammonia, NH3, reacts with a proton, H+, to form ammonium NH4+.
Using the following key:
format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22math1cedebb6e872f539bef8c3f9198%22%20font-size%3D%2216%22%20font-weight%3D%22bold%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3E%26%23xB7%3B%3C%2Ftext%3E%3C%2Fsvg%3E)
N electron
format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22math13b8a614226a953a8cd9526fca6%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%228.5%22%20y%3D%2216%22%3E%26%23xD7%3B%3C%2Ftext%3E%3C%2Fsvg%3E)
H electron
Which of the following Dot & Cross diagrams correctly illustrate electron movement in this reaction.
Did this page help you?
71 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
Did this page help you?
81 mark
Which of these atoms is most electronegative?
Cl
Mg
Br
Na
Did this page help you?
91 mark
Which of the following compounds is not bonded ionically?
CaCO3
CH3OH
NaOH
BaCl2
Did this page help you?
101 mark
“Electrostatic attraction between cations and delocalised electrons”
Which of the following types of bonds does the statement best describe?
hydrogen
ionic
dipole-dipole
metallic
Did this page help you?
111 mark
Which of the following materials only contain one type of bonding?
graphite
brass
ice
iodine crystals
Did this page help you?
121 mark
Based on their Pauling electronegativity values, which atom is more likely to form a covalent bond with fluorine?
|
|
atom |
Pauling value |
|
|
fluorine |
4.0 |
|
A |
hydrogen |
2.2 |
|
B |
copper |
1.9 |
|
C |
magnesium |
1.3 |
|
D |
potassium |
0.8 |
Did this page help you?
11 mark
Which of the following statements about 2-methylpropan-2-ol, CH3C(CH3)(OH)CH3, are correct ?
- The structure contains 16 bonding pair of electrons
- The O-C-C bond angle is 109.5 o
- The total number of electrons is 32
I and II only
I and III only
II and III only
I, II and III
Did this page help you?
21 mark
Which of the following molecules has the biggest overall dipole?
Did this page help you?
31 mark
The electronegativity of four elements are given below
N = 3.0 H = 2.1 F = 4.0 P = 2.1
What is the correct order of polarity for the following compounds
PH3 < PF3 < NF3 < NH3
PH3 < PF3 < NH3 < NF3
NF3 < NH3 < PH3 < PF3
PH3 < NH3 < NF3 < PF3
Did this page help you?
41 mark
Which of the following compounds has both covalent and ionic bonds?
calcium bromide, CaBr2
potassium carbonate, K2CO3
propanoic acid, CH3CH2COOH
dichloromethane, CH2Cl2
Did this page help you?
51 mark
Which is the best description of ionic bonding?
electrostatic attraction between cations and electrons
electrostatic attraction between nuclei
electrostatic attraction between oppositely charged ions
electrostatic attraction of nuclei towards shared electrons in the bond between the nuclei
Did this page help you?
61 mark
Below are four molecules. Which is the most polar molecule present?
CH3NH2
CH4
CCl4
CO2
Did this page help you?
71 mark
Potassium bromide is an ionic compound.
When can potassium bromide conduct electricity?
|
|
Solid |
Molten |
Aqueous |
|
A |
✓ |
✓ |
⨯ |
|
B |
✓ |
⨯ |
✓ |
|
C |
⨯ |
✓ |
✓ |
|
D |
⨯ |
⨯ |
✓ |
Did this page help you?
81 mark
A periodic table is needed to answer this question.
Of the four compounds listed below which one has the greatest ionic character?
HCl
MgS
CO2
CaO
Did this page help you?
91 mark
What is the correct formula for aluminium sulfate?
Al3(SO4)2
Al(SO4)2
Al2(SO4)3
AlSO4
Did this page help you?
101 mark
Aluminium iodide, Al2I6 is a dimer and exists as a solid at room temperature. When it is a vapour it can exist as an AlI3 molecule.
How many valence electrons are in an aluminium iodide, AlI3, molecule?
22
24
26
28
Did this page help you?
11 mark
CHCl3 and Br2 are both liquids at room temperature due to the existence of dipoles.
What dipoles are involved within CHCl3 and Br2?
|
|
CHCl3 |
Br2 |
|
A |
induced dipoles only |
induced dipoles only |
|
B |
induced dipoles only |
induced dipoles and permanent dipoles |
|
C |
induced dipoles and permanent dipoles |
induced dipoles and permanent dipoles |
|
D |
induced dipoles and permanent dipoles |
induced dipoles only |
Did this page help you?
21 mark
What are the correct formulas for the following ions?
|
|
Phosphate |
Ammonium |
Ethanoate |
Nitrite |
|
A |
PO43- |
NH4+ |
CH3COO+ |
NO3- |
|
B |
PO32- |
NH4- |
CH3COO- |
NO2- |
|
C |
PO43- |
NH4+ |
CH3COO- |
NO2- |
|
D |
PO42- |
NH4+ |
CH3CH2COO- |
NO3- |
Did this page help you?
31 mark
What is the correct structure of the chlorite ion, ClO2- ?
Did this page help you?
41 mark
Which of the following statements about 2-chloropropene, CH2C(Cl)CH3 is not correct
There are 3 lone pairs in the molecule
There are 24 valence electrons in the molecule
The molecule does obey the octet rule
The molecule does not obey the octet rule
Did this page help you?
51 mark
Which of the following structures do not obey the octet rule?
- BeCl2
- BF3
- H2O
I and II only
I and III only
II and III only
I, II and III
Did this page help you?
61 mark
The periodic table may be needed to answer this question.
Which is the shortest bond length in the following gases?
oxygen-oxygen in oxygen gas, O2
carbon-carbon in ethyne gas, C2H2
nitrogen-nitrogen in nitrogen gas, N2
oxygen-oxygen in ozone gas, O3
Did this page help you?
71 mark
Which statement best describes the intramolecular bonding in a carbonate ion, CO32-?
Only London forces
Electrostatic attraction between pairs of electrons and positively charged nuclei
Permanent dipole permanent dipole forces
Electrostatic attraction between separate carbonate ions
Did this page help you?
81 mark
The number of electrons in the valence shell of elements X and Y are 5 and 7 respectively. What is the formula and type of compound formed from these elements?
Covalent, XY3
Ionic, XY3
Covalent, X3Y
Ionic, X3Y
Did this page help you?
91 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?
Did this page help you?
101 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
Did this page help you?