Free Chemical Bonding MCQs with Answers
964 Chemical Bonding MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
Last updated
Read the Chemical Bonding notesFree MDCAT chapter notes with key terms964 questions · page 11 of 49
- A. Size.
- B. Shape
- C. Orientation
- D. Capacity
Explanation: The key difference between Px, Py, and Pz orbitals is that the Px orbital has two lobes oriented along the x-axis and the Py orbital has…
Correct answer: Orientation- A. Tetrahedral.
- B. Trigonal.
- C. Linear.
- D. None of these.
Explanation: Most probable shape of molecule having 4 bond pairs with no lone pairs is regular tetrahedron (tetrahedral) Ex:- CH4 ,SiF4 .
Correct answer: Tetrahedral.- A. Complex compound.
- B. Transition element ion.
- C. Anion.
- D. Complex anion.
Explanation: Option A: Complex compound, is a broader term that can refer to any compound that contains a complex ion, including both cationic and…
Correct answer: Complex anion.- A. Ionic Bond.
- B. Chemical bond.
- C. Intermolecular forces.
- D. Intramolecular forces
Explanation: Option A: Ionic bonds are a type of chemical bond that involves the transfer of valence electrons between atoms, resulting in the…
Correct answer: Intermolecular forces.- A. Rotational & Vibrational.
- B. Translational & Rotational.
- C. Rotational, Vibrational, and Translational.
- D. All of these are correct.
Explanation: The kinetic theory of gases is a theoretical model that describes the molecular composition of the gas in terms of a large number of…
Correct answer: Rotational, Vibrational, and Translational.- A. Electron-proton.
- B. Electron-electron.
- C. Electron-nucleus.
- D. Proton-nucleus.
Explanation: Option A: Electron-proton is not the correct answer as the number of protons in the nucleus remains the same when an atom gains an…
Correct answer: Electron-electron.- A. Homonuclear diatomic molecules.
- B. Heteronuclear diatomic molecules.
- C. Similar atoms.
- D. Dissimilar atoms.
Explanation: Option A: Non-polar covalent bonds form between two atoms of the same element or between different elements that share the electrons…
Correct answer: Homonuclear diatomic molecules.- A. Two polar molecules come closer.
- B. Two non-polar molecules comes closer.
- C. Polar and non-polar molecule comes closer.
- D. All of these options are correct.
Explanation: Option A) Two polar molecules come closer is incorrect because polar molecules already have a permanent dipole moment due to the unequal…
Correct answer: Two non-polar molecules comes closer.- A. Polar nature of water.
- B. H-bonding.
- C. Electronegativity difference.
- D. All of these options are correct.
Explanation: Primarily, water dissolves many substances because it contains extremely polar hydrogen bonds.
Correct answer: All of these options are correct.- A. Recessive, higher.
- B. Dominate, minimum.
- C. Dominate, maximum.
- D. Recessive, lower.
Explanation: Option A) Recessive, higher is incorrect because the attractive forces between the atoms are dominant over the repulsive forces, leading…
Correct answer: Dominate, minimum.- A. Linear
- B. Trigonal planar
- C. Tetrahedron
- D. Bent
Explanation: BH3 has a trigonal planar shape with 120° bond angles and has three bonded electron pairs and no lone electron pairs.
Correct answer: Trigonal planar- A. Boyle's law
- B. Charles's law
- C. Avogadro's law
- D. Van Der Waals
Explanation: Van Der Waals modified the ideal gas law to describe the behavior of real gases by explicitly including the effects of molecular size and…
Correct answer: Van Der Waals- A. C-H
- B. N-H
- C. O-H
- D. Cl-H
Explanation: For this case, both Option B and Option C would stand correct; however, the intensity of hydrogen bonding in 'O-H' would be less since it…
Correct answer: N-H- A. SF4
- B. SiF4
- C. BF3
- D. XeF4
Explanation: Sulfur tetrafluoride has a permanent dipole moment. In the SF4 molecule, the central sulfur atom is bonded to four fluorine atoms and has…
Correct answer: SF4- A. Chemical properties of a substance.
- B. Kinetic properties of a substance.
- C. Thermodynamic properties of a substance.
- D. Nature of a substance.
Explanation: Dipole-Dipole interactions result when two dipolar molecules interact with each other through space.
Correct answer: Thermodynamic properties of a substance.- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Each sulfur atom has six valence electrons. In S2O72-. Each sulfur atom shares two pairs of electrons with two oxygen atoms, leaving two…
Correct answer: Option D- A. Weak Van Der Waal's forces.
- B. Disulfide bridges.
- C. Presence of unpaired electron in the structure.
- D. Hydrogen bonding between NH group of one peptide and CO group of another peptide.
Explanation: The alpha helix (α-helix) is a type of secondary structure of proteins and is in a right hand-helix conformation in which every backbone…
Correct answer: Hydrogen bonding between NH group of one peptide and CO group of another peptide.- A. CH4 , NH4+ , PH3
- B. SiCl4 , H2O , BeCl2
- C. SiCl4 , NH4+ , CH4
- D. CH4 , CCl4 , NH3
Explanation: Since all molecules stated in option C are tetrahedral in shape, where a central atom is located at the center with four substituents that…
Correct answer: SiCl4 , NH4+ , CH4- A. Covalent bond of molecule is broken.
- B. Electron is added to gaseous atom.
- C. Electron is removed from gaseous atom.
- D. Covalent bond is formed between the atoms.
Explanation: The electron affinity (Eea) of an atom or molecule is defined as the amount of energy released when an electron is attached to a neutral…
Correct answer: Electron is added to gaseous atom.- A. Dipole-dipole.
- B. Induced dipole.
- C. London Dispersion Forces.
- D. Spontaneous induced dipole.
Explanation: Noble gases have very little intermolecular forces acting between them since they are monoatomic and unpolarised.
Correct answer: London Dispersion Forces.