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 24 of 49
- A. 1
- B. 3
- C. 2
- D. 4
Explanation: Ground state configuration of 6C = 1s2, 2s2, 2px1, 2py1, 2pz0 .In ground state Carbon has 2 unpaired electrons.
Correct answer: 2- A. C
- B. O
- C. P
- D. F
Explanation: Phosphorus, being in the third period of the periodic table, has access to d orbitals in addition to the s and p orbitals.
Correct answer: P- A. % ionic character
- B. Bond angles
- C. Geometry of the molecules
- D. All of the above
Explanation: Dipole moment gives the information about:% ionic characterBond anglesGeometry of the molecules
Correct answer: All of the above- A. Hybridization of central atom
- B. Atomic radius
- C. Nature of molecule
- D. All of these
Explanation: Bond length is affected by all of the above given options Hybridization of central atom Nature of molecule Atomic radius hence this is the…
Correct answer: All of these- A. Br- Br > I - I
- B. CI - CI > F - F
- C. C ≡ C > N ≡ N
- D. All are correct
Explanation: The bond energy of Cl2 (diatomic chlorine molecule) is generally lower than that of F2 (diatomic fluorine molecule).
Correct answer: C ≡ C > N ≡ N- A. Debye
- B. pm
- C. mC
- D. Both A and B
Explanation: The SI (International System of Units) unit of dipole moment is the coulomb meter (mC).
Correct answer: mC- A. CH3CI
- B. BF3
- C. CO2
- D. CCI4
Explanation: CH3CI is a polar molecule and has non-zero dipole moment due to polarity between C and Cl.
Correct answer: CH3CI- A. H2O
- B. H2S
- C. CO
- D. CH4
Explanation: H2O (μ= 1.85D),CO (p=0.12D),H2S (μ=0.95D),CH4 (μ= 0.0D).Water is a highly polar molecule due to its bent molecular geometry and the…
Correct answer: H2O- A. 22.7pm
- B. 99.7pm
- C. 176.7pm
- D. 330.7pm
Explanation: Bond length (BL)= rc + rci.rci = BL-rc = 176.7-77 = 99.7pm In the equation above, BL represents the bond length, rc represents the…
Correct answer: 99.7pm- A. Benzene
- B. Boron trifluoride
- C. Ethene
- D. Phosphorous trichlorid
Explanation: Phosphorus trichloride does not have a planar geometry. It has a trigonal pyramidal molecular geometry.
Correct answer: Phosphorous trichlorid- A. AI2O3 and Al2CI6
- B. P4O10 and PCI3
- C. SiO2 and SiCI4
- D. HF and PbCI4
Explanation: Al2O3 (aluminum oxide) is a giant ionic compound. It consists of a three-dimensional lattice of aluminum ions (Al+3) and oxygen ions…
Correct answer: AI2O3 and Al2CI6- A. NF3
- B. C3H8
- C. C2CI4
- D. C3H6
Explanation: The molecule C3H8, which is propane, has only non-coplanar tetrahedral geometry.Propane (C3H8) consists of three carbon atoms bonded…
Correct answer: C3H8- A. All are present in the solid state
- B. All conduct electricity in the molten state
- C. All show polymorphism and isomerism
- D. All have non-directional and non-rigid bond
Explanation: "The explanation for this question will be added soon!".
Correct answer: All show polymorphism and isomerism- A. A
- B. B
- C. C
- D. D
Explanation: The angle P(between CH3 and C)is 109.50.The carbon atom in the methyl group forms tetrahedral angles due to its four single bonds…
Correct answer: C- A. Central atom is surrounded by similar atoms
- B. Central atom has no lone pair
- C. Molecule has similar bonds
- D. The electronegativity of central or surrounding atoms affect the bond angle
Explanation: "The explanation for this question will be added soon!".
Correct answer: Central atom is surrounded by similar atoms- A. Electrovalent bond
- B. Dative covalent bond
- C. Ordinary covalent bond
- D. Hydrogen bond
Explanation: Majority of the compounds in nature have covelant bond.
Correct answer: Ordinary covalent bond- A. They are present in the gas, liquid or solid state
- B. They are more reactive than ionic compounds
- C. They show resonance and isomerism
- D. They have low melting points and boiling points as compared to ionic compounds
Explanation: The ionic compounds exist in the form of ions in an aqueous solution. The chemical reaction between ions occur rapidly.Since, there is no…
Correct answer: They are more reactive than ionic compounds- A. H2O
- B. Cl2O
- C. HCN
- D. C2H4
Explanation: The geometry of HCN (hydrogen cyanide) is linear. In HCN, the central carbon atom is bonded to a hydrogen atom and a nitrogen atom.
Correct answer: HCN- A. Repulsion between electrons and negatively charged ions
- B. Attraction between electrons and positively charged ions
- C. First repulsion between electrons and then attraction
- D. Both A and B
Explanation: Second and higher electron affinity values are positive because adding an additional electron to an already negatively charged ion (anion)…
Correct answer: Repulsion between electrons and negatively charged ions- A. Al and Cl
- B. H and Cl
- C. B and F
- D. Na and H
Explanation: Sodium (Na) is a metal, and hydrogen (H) is a nonmetal. The electronegativity difference between Na and H is substantial.
Correct answer: Na and H