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Questions and Answers
Which of the following molecules has the strongest bond?
Which of the following molecules has the strongest bond?
- C = N
- C = O
- C = C
- N = O (correct)
What is the correct statement about molecular stability?
What is the correct statement about molecular stability?
- Molecule is unstable if Nb is greater than Na
- Molecule is stable if Na is greater than Nb
- Molecule is stable if Nb is greater than Na (correct)
- Molecule is unstable if Na is equal to Nb
How many electrons are involved in the formation of a nitrogen molecule?
How many electrons are involved in the formation of a nitrogen molecule?
- 3
- 6
- 8 (correct)
- 4
Which statement is correct about bond order?
Which statement is correct about bond order?
What is the correct statement about molecular orbitals?
What is the correct statement about molecular orbitals?
What is the correct statement about chemical reactions?
What is the correct statement about chemical reactions?
Which of the following is not a characteristic of a stable molecule?
Which of the following is not a characteristic of a stable molecule?
What is the correct statement about ionization energy?
What is the correct statement about ionization energy?
What is the correct molecular orbital representation for a molecule?
What is the correct molecular orbital representation for a molecule?
Which of the following species has the highest ionization energy?
Which of the following species has the highest ionization energy?
What is the correct order of solubility of the given sulfates?
What is the correct order of solubility of the given sulfates?
Which of the following species has the highest electron affinity?
Which of the following species has the highest electron affinity?
What is the correct molecular orbital representation for a molecule?
What is the correct molecular orbital representation for a molecule?
Which of the following species shows the highest acidic nature?
Which of the following species shows the highest acidic nature?
What is the correct order of solubility of the given sulfates?
What is the correct order of solubility of the given sulfates?
Which of the following species has the highest ionization energy?
Which of the following species has the highest ionization energy?
Which theory explains the geometry of a molecule?
Which theory explains the geometry of a molecule?
Which of the following orbitals do not participate in hybridization?
Which of the following orbitals do not participate in hybridization?
Which species shows different bond lengths?
Which species shows different bond lengths?
Which species does not show 2s-2p mixing?
Which species does not show 2s-2p mixing?
Which species shows electrostatic force?
Which species shows electrostatic force?
What is the main reason for the formation of a molecular bond?
What is the main reason for the formation of a molecular bond?
Which of the following molecules has a tetrahedral shape?
Which of the following molecules has a tetrahedral shape?
What is the result of the hybridization of atomic orbitals?
What is the result of the hybridization of atomic orbitals?
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Study Notes
Molecular Geometry and Bonding
- Octet theory explains the geometry of molecules.
- VSEPR (Valence Shell Electron Pair Repulsion) theory is used to predict the shape of molecules.
Hybridization
- In hybridization, orbitals mix to form new hybrid orbitals that are used to form bonds.
- The orbitals involved in hybridization are s, p, and d orbitals.
- The type of hybridization depends on the molecule and the number of electron pairs.
Bond Length
- PCl5 and SF6 have different bond lengths due to differences in their molecular geometry.
- The bond length of a molecule depends on the electrostatic forces between the atoms.
2s-2p Mixing
- 2s-2p mixing occurs in molecules where the s and p orbitals mix to form hybrid orbitals.
- B2, C2, N2, and O2 are examples of molecules that exhibit 2s-2p mixing.
Electrostatic Forces
- Electrostatic forces are responsible for the attraction between ions in ionic compounds.
- NaCl, H2O, and HF are examples of molecules that exhibit electrostatic forces.
Molecular Orbital Theory
- Molecular Orbital (MO) theory is used to describe the bonding in molecules.
- MO theory combines atomic orbitals to form molecular orbitals that describe the bonding and antibonding interactions.
Electron Affinity
- Electron affinity is the energy change when an electron is added to an atom or molecule.
- The electron affinity of an atom or molecule is related to its electronegativity.
Solubility
- The solubility of a compound depends on the strength of the electrostatic forces between the ions.
- The solubility of a compound can be predicted based on the type of bonding and the electronegativity of the atoms.
Acid-Base Chemistry
- Acid-base chemistry is based on the transfer of electrons or protons between molecules.
- The acidity of a molecule depends on the electronegativity of the atoms and the type of bonding.
Bond Strength
- The strength of a bond depends on the electronegativity of the atoms and the type of bonding.
- The bond strength of a molecule can be predicted based on the type of bonding and the electronegativity of the atoms.
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