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 5 of 49
- A. 3 bond pair one lone pair
- B. 2 bond pair 2 lone pair
- C. 1 bond pair 3 lone pair
- D. 3 lone pair 1 bond pair
Explanation: A pyramidal molecular shape results when the central atom has three bonding pairs and one lone pair, as in NH3.
Correct answer: 3 bond pair one lone pair- A. Tetrahedral
- B. Square planner
- C. Trigonal bipyramidal
- D. Trigonal Pyramidal
Explanation: Ammonia has three N-H bonding pairs and one lone pair around nitrogen; the four electron pairs have tetrahedral electron arrangement, but…
Correct answer: Trigonal Pyramidal- A. Electron deficient
- B. Electron rich
- C. Octet is complete
- D. No such acids exist
Explanation: A Lewis acid accepts an electron pair, so it is commonly electron-deficient or has an incomplete octet, as in BF3 or AlCl3.
Correct answer: Electron deficient- A. C
- B. O
- C. F
- D. P
Explanation: Phosphorus can form compounds such as PCl5 in which it has ten electrons around the central atom, showing an expanded valence shell beyond…
Correct answer: P- A. VSEPR
- B. VBT
- C. MOT
- D. none of the above
Explanation: Molecular orbital theory is considered more comprehensive because it treats electrons as occupying molecular orbitals spread over the…
Correct answer: MOT- A. CH3 - F
- B. CH3 - I
- C. CH3 - Cl
- D. CH3 - Br
Explanation: This is because the strength of the bond between an alkyl halide and an amine is determined by the polarity of the bond, with more polar…
Correct answer: CH3 - F- A. Sp
- B. Sp2
- C. Sp3
- D. Dsp
Explanation: Linear-shaped hybrid orbitals are formed by the combination of one s orbital and one p orbital.
Correct answer: Sp- A. 1
- B. 2
- C. 3
- D. 4
Explanation: Carbon monoxide, or CO, has one carbon atom and one oxygen atom. In its Lewis dot structure, the carbon atom is triple-bonded to the…
Correct answer: 3- A. [Cr(H2O)6]Cl3
- B. [Cr(H2O)5Cl]Cl2.2H2O
- C. [Cr(H2O)4Cl2]Cl.2H2O
- D. [Cr(H2O)3Cl3].3H2O
Explanation: The answer is B) Cr(H2O)5Cl]Cl2.2H2O. The complex has a total of 6 ligands, 6 water molecules and 1 chloride ion.
Correct answer: [Cr(H2O)5Cl]Cl2.2H2O- A. 180
- B. 109.5
- C. 120
- D. 90
Explanation: A tetrahedral arrangement has four atoms or groups bonded to a central atom, creating a three-dimensional shape with bond angles of…
Correct answer: 109.5- A. 3
- B. 4
- C. 5
- D. 6
Explanation: The structure of Vitamin B12, as described in the information, consists of cobalt as the central atom surrounded by six ligands: a…
Correct answer: 6- A. 301 kJ mol−1
- B. 320 kJ mol−1
- C. 309 kJ mol−1
- D. 280 kJ mol−1
Explanation: To find the average S-F bond energy in SF6, we need to use the concept of bond energies and the given standard heat of formation values.
Correct answer: 309 kJ mol−1- A. 4q3 − q1 − 2q2
- B. q1 + q2 − q3
- C. q1 + 2q2 − 4q3
- D. q1 + 4q2 − 4q3
Explanation: C(s) + 2H2(g) → CH4(g); ∆H = ? C(s) → C(g); ∆H1 = q1 H2(g) → 2H(g); ∆H2 = 2q2 ∆H = q1 + 4q2 − 4q3
Correct answer: q1 + 4q2 − 4q3- A. C - H
- B. C - N
- C. C - O
- D. C - C
Explanation: Smaller the atom bonded lesser will be the bond length and higher will be the bond energy The highest bond energy among the given single…
Correct answer: C - H- A. 66.3 pm
- B. 276.1 pm
- C. 77.3 pm
- D. 175.4 pm
Explanation: The covalent radius of an atom is half the distance between two identical atoms joined by a single covalent bond.
Correct answer: 77.3 pm- A. H2S
- B. SiH4
- C. NH3
- D. HI
Explanation: Hydrogen bonding occurs in those substances in which a highly electronegative atom (such as Fluorine (F), Oxygen (O) or Nitrogen (N)) is…
Correct answer: NH3- A. Graphite
- B. Copper
- C. Molten NaCl
- D. Mercury
Explanation: Carbon atom has 4 electrons in its outer shell. This delocalised electron can move move freely between the carbon layers of graphite and…
Correct answer: Molten NaCl- A. H2S
- B. SO2
- C. SnCl2
- D. BeF2
Explanation: CO2 has a linear structure with a bond angle of 180 degrees with the central atom (C) having no lone pairs and being sp hybrid.
Correct answer: BeF2- A. CH4
- B. SO2
- C. KCl
- D. NaOH
Explanation: NaOH is formed by Na+ (cation) and anion (OH-). Thus, It contains ionic bonds.
Correct answer: NaOH- A. C2H4
- B. N2
- C. CO2
- D. NH3
Explanation: C2H4 has the largest number of shared electrons as it has 12 valence electrons in total which are all part of a shared pair (4 electrons…
Correct answer: C2H4