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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964 questions · page 39 of 49

  • A. SO2-4
  • B. ClO-4
  • C. NH+4
  • D. XeF4

Explanation: All of the other molecules have tetrahedral shape whereas XeF4 has square planar shape with bond angle 90° or 180° .

Correct answer: XeF4
  • A. NH3
  • B. NF3
  • C. H2O
  • D. CH4

Explanation: The bond angle is reduced from 107° in ammonia to 101.9° in NF3, because the very electronegative fluorines pull the electrons in the N-F…

Correct answer: NF3
  • A. C - C
  • B. N - N
  • C. O - O
  • D. S - S

Explanation: The correct answer is Option C: O - O. The bond energy of an O-O bond is 146 kJ/mol, which is the lowest among the options presented.

Correct answer: O - O
  • A. High electronegativity
  • B. Small size
  • C. High electron affinity
  • D. Metallic character

Explanation: Option D is correct because the ionization energy of an element is a measure of its metallic character .Lower the ionization energy the…

Correct answer: Metallic character
  • A. MgCl2
  • B. SnCl2
  • C. HgCl2
  • D. NH3

Explanation: Tin atoms have 4 electrons in their valence shell and two shared pairs thus having a V-shaped bent structure.

Correct answer: SnCl2
  • A. s = 33.3%, p = 66.6%
  • B. p = 33.3%, s = 66.6%
  • C. s = 40%, p = 60%
  • D. s = 25%, p = 75%

Explanation: In sp2 hybridization, the ratio of the percentage of s and p character in the hybrid orbitals is approximately 1:2.

Correct answer: s = 33.3%, p = 66.6%
  • A. Benzene
  • B. Formaldehyde
  • C. BF3
  • D. Propane

Explanation: Propane is not planar because it is a tetrahedral molecule. The four C-H bonds are arranged in a tetrahedral configuration, and the…

Correct answer: Propane
  • A. 90 degree.
  • B. 120 degree.
  • C. 109.5o
  • D. 180o

Explanation: Unhybridized p-orbital lies perpendicular to the sigma sp2 frame work.

Correct answer: 120 degree.
  • A. sp3 sp3
  • B. sp-sp
  • C. sp3 sp2
  • D. All have same strength

Explanation: This type of hybridization involves two atoms, each with an sp hybridized orbital, forming a sigma bond.

Correct answer: sp-sp
  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Explanation: Option A is correct as it depicts the nitrogen atom as having five valence electrons as it belongs to group \/A and thus requires three…

Correct answer: Option A
  • A. Group IVA element with 4 single bonds
  • B. Group V A element with 3 single and one coordinate bond
  • C. Group VI A element with 2 single and two double bonds
  • D. Group VI A element with 3 double bonds.

Explanation: This element will show AB3 type geometry with three bond pairs and thus has triangular planar shape.

Correct answer: Group VI A element with 3 double bonds.
  • A. NH3
  • B. AICI3
  • C. MgCl2
  • D. BeH2

Explanation: BeH2 shows sp hybridization as Be has two hybrid shells sp which form sp-s bonds with hydrogen.

Correct answer: BeH2
  • A. IF7
  • B. PCl5
  • C. CCl4
  • D. All

Explanation: All of the above given options are non-polar but show polar covalent bonds.

Correct answer: All
  • A. SnCl2
  • B. PH3
  • C. GeCl4
  • D. H2O

Explanation: GeCl4 has no lone pair of electrons to donate.

Correct answer: GeCl4
  • A. BeCI2, SnCI2
  • B. SnCI2 ' SO2
  • C. SO2, OF2
  • D. OF2, BeCl2

Explanation: SnCI2 and SO2 both have same bent geometry with bond angle less than 120 and are AB3 type with 2 bonding pairs and one lone pair.

Correct answer: SnCI2 ' SO2
  • A. C - C
  • B. N - N
  • C. P - P
  • D. O - O

Explanation: In the periodic table, shortening of bond lengths occurs from left to right in, a period.Therefore as oxygen is on the left most side of…

Correct answer: O - O
  • A. C - C
  • B. Si - H
  • C. Si - F
  • D. C - CI

Explanation: With an increase in electronegativity diference between the bonded atoms, the bond becomes shortened.

Correct answer: Si - F
  • A. have been
  • B. have
  • C. has been
  • D. has

Explanation: In this sentence, "One-third of the computers" is the subject. The phrase "of the computers" makes it clear that we are talking about a…

Correct answer: have
  • A. Creativity
  • B. Prospect
  • C. Configuration
  • D. Competition

Explanation: The word that best fits in the blank is "Creativity."So the sentence reads:"Though the apprentice was a highly proficient IT professional…

Correct answer: Creativity
  • A. Only conclusion I follows
  • B. Only conclusion II follows
  • C. Either conclusion I or II follows
  • D. Both conclusions I and II follow

Explanation: The statement directly links population growth to the depletion of essential resources.

Correct answer: Only conclusion II follows