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.
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Read the Chemical Bonding notesFree MDCAT chapter notes with key terms964 questions · page 12 of 49
- A. Ionic bond.
- B. Induced dipole forces.
- C. Hydrogen bond.
- D. All of these options are correct.
Explanation: Hydrogen bonds are the strongest intermolecular forces which is why they are able to form clusters and large molecules.
Correct answer: Hydrogen bond.- A. HF
- B. HCl
- C. H2O
- D. H2
Explanation: H2 forms a covalent bond with identical atoms, so the electrons in the bond must be shared equally.
Correct answer: H2- A. CH3OH
- B. CH3CH2OH
- C. C6H5OH
- D. C6H11OH
Explanation: Phenol has a benzene ring that can participate in pi-bonding (π-bonding) with other electron-rich aromatic systems in addition to forming…
Correct answer: C6H5OH- A. Electrons.
- B. Electronic cloud.
- C. Lone pair on an atom.
- D. Poles of atoms
Explanation: The strength of London forces depends upon the size of the electronic cloud of the atom or molecules.
Correct answer: Electronic cloud.- A. Number of electrons.
- B. Number of unpaired electrons.
- C. Number of paired electrons.
- D. Number of protons.
Explanation: Melting and boiling points of substances depend on various factors, and one of the factors that play a role is the number of electrons.
Correct answer: Number of electrons.- A. Polar, non-polar.
- B. Non-polar, neutral.
- C. Polar, Neutral.
- D. Neutral, non-polar
Explanation: CCl4 is non-polar in nature. Although the four bonds (C-Cl) are polar because of the difference in electronegativity of Chlorine (3.16)…
Correct answer: Polar, non-polar.- A. Smaller.
- B. Greater
- C. Higher
- D. Lower
Explanation: The greater the amount of negative charge on an atom, the size of the ion will also be greater.
Correct answer: Greater- A. Due to stronger dipole forces.
- B. Due to stronger polarity.
- C. Due to stronger London forces.
- D. Due to stronger Debye forces.
Explanation: As you move down the Group, the attraction forces between the molecules of these elements get stronger.
Correct answer: Due to stronger London forces.- A. Ionic bond.
- B. Covalent bond.
- C. Metallic bond.
- D. Dipole Dipole forces.
Explanation: Correct option is D. The force that holds together the atoms making up a molecule or compound.
Correct answer: Dipole Dipole forces.230. Nitrogen N2 molecule has 3 unpaired electron on each atom therefore it shows three bond that are?
- A. 2 sigma & 1 pi bond.
- B. 1 sigma & 2 pi bond
- C. 3 sigma
- D. 3 pi bond
Explanation: Correct option is B. A pair of atoms may be connected by one or by two pi bonds only if a sigma bond also exists between them; in the…
Correct answer: 1 sigma & 2 pi bond- A. Ionic bond.
- B. Chemical bond.
- C. Covalent bond.
- D. Metallic bond.
Explanation: Correct option is B. Chemical bonding is the attraction between two or more atoms that allows them to be able to form a stable chemical…
Correct answer: Chemical bond.- A. Atoms of helium in gaseous state at high temperature.
- B. Molecules of water.
- C. Molecules of solid iodine.
- D. Molecules of HCl gas.
Explanation: Correct option is C, Iodine is a non-polar molecule as there is an equal sharing of electrons between the two Iodine atoms present.
Correct answer: Molecules of solid iodine.- A. 2
- B. 3
- C. 4
- D. 5
Explanation: Correct option is C. Methane is tetrahedral, with 4 equal bond angles of 109.5° and 4 equal bond lengths, and no dipole moment.
Correct answer: 4- A. Electrovalent
- B. Hydrogen
- C. Co-ordinate
- D. Covalent
Explanation: Electronic configuration of atom with atomic no. 37 is:1s22s22p63s23p64s23d104p65s1or [Kr]5s1Electronic configuration of atom with atomic…
Correct answer: Electrovalent- A. H₃O⁺
- B. F₂O
- C. NH₄⁺
- D. BCl₃
Explanation: F₂O has a bond angle of 103.1°. H₃O⁺ has a bond angle of 113°. BCl₃ has a bond angle of 120°. NH₄⁺ has a bond angle of 109.5°.
Correct answer: F₂O- A. 1
- B. 2
- C. 3
- D. 4
Explanation: Each water molecule can form two hydrogen bonds involving its oxygen lone pairs plus two further hydrogen bonds utilizing the hydrogen…
Correct answer: 4- A. 3
- B. 4
- C. 2
- D. 1
Explanation: A water molecule can form 4 hydrogen bonds with another water molecule at most.
Correct answer: 4- A. OH⁻
- B. H₂O
- C. H₃O+
- D. H⁺
Explanation: An oxonium ion is an oxygen cation that is bonded to three other groups.
Correct answer: H₃O+- A. Same
- B. Shorter
- C. None of these
- D. Greater
Explanation: Greater the s - character, the closer the orbitals are to the nucleus and hence form stronger and shorter bonds.s −character in different…
Correct answer: Shorter- A. AB₄ type with two lone pairs
- B. AB₄ type with no lone pair
- C. AB₄ with no bond pair
- D. AB₄ with one lone pair
Explanation: In a methane molecule, the four valence electrons of carbon are each paired with one electron of hydrogen.
Correct answer: AB₄ type with no lone pair