Chemical Bonding and Structure
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Ionic bonding and structure
SubtopicIonic bonding and structure under Chemical Bonding and Structure for Grade 11 IB.
Preview questions (no answers)
- 1.
Which statement regarding the melting point of compared to is correct?
A.is lower because ions are smaller
B.is higher because the ions have higher charges
C.is higher because fluorine is more electronegative
D.is lower because it is a liquid at room temperature
- 2.
What is the charge of the sulfite ion?
A.B.C.D. - 3.
Which of the following atoms will form an ion by losing 3 electrons?
A.Nitrogen
B.Oxygen
C.Aluminum
D.Carbon
- 4.
The term 'lattice' in ionic bonding refers to:
A.A random cluster of ions
B.A regular repeating three-dimensional arrangement
C.A single molecule of the salt
D.The path electrons take during transfer
- 5.
Predict the type of bonding in a substance that is a solid at room temperature, dissolves in water to form a conducting solution, and has a high melting point.
A.Non-polar covalent
B.Polar covalent
C.Metallic
D.Ionic
- 6.
Which of the following is most likely to form a 1:1 ionic compound with Bromine?
A.Calcium
B.Aluminum
C.Potassium
D.Sulfur
- 7.
Which statement correctly describes the trend in ionic radius for Group 1 cations?
A.Radius decreases down the group due to increased nuclear charge.
B.Radius increases down the group as the number of electron shells increases.
C.Radius remains constant as they all have a charge.
D.Radius increases down the group because the number of protons decreases.
- 8.
Which of the following compounds will have the most similar theoretical and experimental lattice enthalpy values?
A.B.C.D. - 9.
In the Born-Haber cycle for , how many times must the enthalpy of atomization of iron be included?
A.1
B.2
C.3
D.6
- 10.
The solubility of Group 2 sulfates decreases down the group ( is soluble, is insoluble). Which energy change dominates this trend?
A.Lattice enthalpy decreases faster than hydration enthalpy
B.Hydration enthalpy decreases faster than lattice enthalpy
C.Lattice enthalpy increases down the group
D.Hydration enthalpy increases down the group
Download the worksheet for Chemical Bonding and Structure - Ionic bonding and structure to practice offline. It includes additional chapter-level practice questions.
Covalent bonding
SubtopicCovalent bonding under Chemical Bonding and Structure for Grade 11 IB.
Preview questions (no answers)
- 1.
Which substance contains only covalent bonds?
A.B.C.D. - 2.
What is the bond order of the oxygen-oxygen bond in ?
A.1
B.1.5
C.2
D.3
- 3.
Which statement describes a sigma () bond?
A.It is formed by the sideways overlap of p orbitals.
B.It is formed by the head-on overlap of orbitals along the internuclear axis.
C.It is weaker than a pi bond.
D.It can only be formed between two s orbitals.
- 4.
What is the molecular geometry of sulfur dioxide ()?
A.Linear
B.Bent
C.Trigonal planar
D.Tetrahedral
- 5.
Using the VSEPR theory steps outlined in the flowchart, what is the molecular geometry of the ion?
A.Linear
B.Trigonal pyramidal
C.Bent
D.Square planar
- 6.
Which of the following halogen molecules has the highest bond enthalpy?
A.B.C.D. - 7.
Which bond angle is found in the octahedral molecular geometry of ?
A.120°
B.109.5°
C.90°
D.107°
- 8.
Aluminum chloride exists as a trigonal planar monomer, , at high temperatures in the vapor phase. As the temperature decreases, it forms a stable dimer, , through the formation of coordinate covalent bonds where chlorine atoms act as bridges. Which of the following describes the change in the hybridization of the aluminum atom during this dimerization?
A.From to hybridization
B.From to hybridization
C.From to hybridization
D.From to hybridization
- 9.
The species , , and all contain a central nitrogen atom bonded to two oxygen atoms, but they differ in the number of non-bonding electrons on the nitrogen. Based on VSEPR theory and the relative repulsive strengths of lone pairs versus single unpaired electrons, which of the following correctly ranks their bond angles in decreasing order?
A.B.C.D. - 10.
Identify the species where the central atom has the same hybridization as the central atom in .
A.B.C.D.
Download the worksheet for Chemical Bonding and Structure - Covalent bonding to practice offline. It includes additional chapter-level practice questions.
Intermolecular forces
SubtopicIntermolecular forces under Chemical Bonding and Structure for Grade 11 IB.
Preview questions (no answers)
- 1.
Which force is present between two molecules of in the solid (dry ice) phase?
A.Dipole-dipole interaction
B.London dispersion forces
C.Hydrogen bonding
D.Covalent bonding
- 2.
Which of the following will have the highest boiling point among these non-polar molecules?
A.B.C.D. - 3.
What is the dominant intermolecular force in a liquid sample of ?
A.London dispersion forces
B.Dipole-dipole forces
C.Hydrogen bonding
D.Ionic bonding
- 4.
Which of the following statements about intermolecular forces is FALSE?
A.They are weaker than covalent bonds.
B.They determine physical properties like melting point.
C.They are the forces within a molecule that hold atoms together.
D.They depend on the polarity of the molecule.
- 5.
Both propane () and ethanal () have a molar mass of approximately . However, ethanal has a significantly higher boiling point () than propane (). Based on the provided flowchart, which statement correctly explains this difference in boiling points?
A.Ethanal molecules form strong hydrogen bonds with each other because the molecule contains both oxygen and hydrogen atoms.
B.Ethanal is a polar molecule, and the resulting dipole-dipole attractions are stronger than the London dispersion forces between non-polar propane molecules.
C.Propane is more polarizable than ethanal, which results in propane having stronger instantaneous dipole-induced dipole attractions.
D.The bonds in propane are more polar than the carbonyl group in ethanal, leading to stronger intermolecular attractions in the alkane.
- 6.
Ethanoic acid () often exists as a dimer in the gas phase. What type of interaction is primarily responsible for this?
A.Covalent bonding
B.Hydrogen bonding
C.London dispersion forces
D.Ionic bonding
- 7.
Which of the following correctly describes the relationship between intermolecular forces and vapor pressure?
A.Stronger intermolecular forces lead to higher vapor pressure
B.Stronger intermolecular forces lead to lower vapor pressure
C.Vapor pressure is independent of intermolecular forces
D.Only London dispersion forces affect vapor pressure
- 8.
Four organic compounds with similar molar masses (approximately ) are studied: butane (), propanal (), propan-1-ol (), and ethanamide (). Based on their structural features and the types of intermolecular forces shown in the diagram, which of the following lists the compounds in order of increasing boiling point?
A.propanal < butane < propan-1-ol < ethanamide
B.butane < propan-1-ol < propanal < ethanamide
C.butane < propanal < propan-1-ol < ethanamide
D.butane < propanal < ethanamide < propan-1-ol
- 9.
Which molecule can act as a hydrogen bond acceptor but NOT as a hydrogen bond donor towards itself?
A.(Propanone)
B.(Ethanol)
C.(Methylamine)
D.(Water)
- 10.
Which of the following would have the highest boiling point?
A.B.C.D.
Download the worksheet for Chemical Bonding and Structure - Intermolecular forces to practice offline. It includes additional chapter-level practice questions.
Metallic bonding
SubtopicMetallic bonding under Chemical Bonding and Structure for Grade 11 IB.
Preview questions (no answers)
- 1.
What type of lattice is found in a sample of aluminum metal?
A.Ionic lattice
B.Molecular lattice
C.Giant covalent lattice
D.Metallic lattice
- 2.
Which statement about the boiling points of metals is generally true?
A.They are lower than their melting points
B.They are very low compared to non-metals
C.They are generally high due to strong metallic bonds
D.They increase as the metallic bond gets weaker
- 3.
How does the size of the metal cation affect the melting point of a metal?
A.Larger cations lead to higher melting points
B.Smaller cations lead to higher melting points
C.Cation size has no effect on melting point
D.Smaller cations lead to lower melting points
- 4.
Which of the following elements is considered a metalloid but can show some metallic-like bonding?
A.Sulfur
B.Silicon
C.Neon
D.Fluorine
- 5.
Which of the following substances contains metallic bonds?
A.(diamond)
B.(graphite)
C.(copper)
D.(copper chloride)
- 6.
Which of the following statements about Group 1 metals is correct?
A.They have higher melting points than Group 2 metals.
B.They contribute only one electron per atom to the delocalized sea.
C.They are harder than transition metals.
D.Their metallic bonds get stronger as you go down the group.
- 7.
What is the structural effect of adding carbon to iron to make steel?
A.Carbon atoms replace iron atoms in the lattice.
B.Carbon atoms occupy the small spaces (interstices) between iron atoms.
C.Carbon atoms form a layer on the outside of the iron.
D.Carbon atoms react to form Iron(II) oxide.
- 8.
How does the 'sea of electrons' model explain the high thermal conductivity of metals?
A.The fixed cations vibrate and pass energy to neighboring cations.
B.The delocalized electrons gain kinetic energy and move rapidly through the lattice, transferring heat.
C.The metallic bonds act as heat-conductive wires.
D.The electrons expand when heated, pushing the cations further apart.
- 9.
What is the primary reason that Zinc () has a lower melting point than Iron ()?
A.Zinc has a larger atomic radius than Iron.
B.Zinc has a completely filled d-subshell, so d-electrons do not contribute significantly to metallic bonding.
C.Iron is more electronegative than Zinc.
D.Zinc reacts more readily with oxygen, weakening its lattice.
- 10.
Which of the following statements about the enthalpy of atomization () is correct regarding metallic bonding?
A.It is the energy required to convert 1 mole of a solid metal into 1 mole of gaseous ions.
B.Higher values generally correlate with stronger metallic bonding and higher melting points.
C.decreases as the number of delocalized electrons per atom increases.
D.is independent of the size of the metal cation.
Download the worksheet for Chemical Bonding and Structure - Metallic bonding to practice offline. It includes additional chapter-level practice questions.
Further aspects of covalent bonding and structure (HL)
SubtopicFurther aspects of covalent bonding and structure (HL) under Chemical Bonding and Structure for Grade 11 IB.
Preview questions (no answers)
- 1.
- Further aspects of covalent bonding and structure (HL): practice question 1 for Chemical Bonding and Structure?
A.Option A
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C.Option C
D.Option D
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- Further aspects of covalent bonding and structure (HL): practice question 2 for Chemical Bonding and Structure?
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- Further aspects of covalent bonding and structure (HL): practice question 3 for Chemical Bonding and Structure?
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- Further aspects of covalent bonding and structure (HL): practice question 4 for Chemical Bonding and Structure?
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- Further aspects of covalent bonding and structure (HL): practice question 5 for Chemical Bonding and Structure?
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- Further aspects of covalent bonding and structure (HL): practice question 6 for Chemical Bonding and Structure?
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- Further aspects of covalent bonding and structure (HL): practice question 7 for Chemical Bonding and Structure?
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- Further aspects of covalent bonding and structure (HL): practice question 8 for Chemical Bonding and Structure?
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- 9.
- Further aspects of covalent bonding and structure (HL): practice question 9 for Chemical Bonding and Structure?
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- 10.
- Further aspects of covalent bonding and structure (HL): practice question 10 for Chemical Bonding and Structure?
A.Option A
B.Option B
C.Option C
D.Option D
Download the worksheet for Chemical Bonding and Structure - Further aspects of covalent bonding and structure (HL) to practice offline. It includes additional chapter-level practice questions.
Hybridization (HL)
SubtopicHybridization (HL) under Chemical Bonding and Structure for Grade 11 IB.
Preview questions (no answers)
- 1.
- Hybridization (HL): practice question 1 for Chemical Bonding and Structure?
A.Option A
B.Option B
C.Option C
D.Option D
- 2.
- Hybridization (HL): practice question 2 for Chemical Bonding and Structure?
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C.Option C
D.Option D
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- Hybridization (HL): practice question 3 for Chemical Bonding and Structure?
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- Hybridization (HL): practice question 4 for Chemical Bonding and Structure?
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- Hybridization (HL): practice question 5 for Chemical Bonding and Structure?
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- Hybridization (HL): practice question 6 for Chemical Bonding and Structure?
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- Hybridization (HL): practice question 7 for Chemical Bonding and Structure?
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- Hybridization (HL): practice question 8 for Chemical Bonding and Structure?
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- 9.
- Hybridization (HL): practice question 9 for Chemical Bonding and Structure?
A.Option A
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C.Option C
D.Option D
- 10.
- Hybridization (HL): practice question 10 for Chemical Bonding and Structure?
A.Option A
B.Option B
C.Option C
D.Option D
Download the worksheet for Chemical Bonding and Structure - Hybridization (HL) to practice offline. It includes additional chapter-level practice questions.