Podcast
Questions and Answers
What is the characteristic of the lowest-lying molecular orbital in cyclic conjugated molecules?
What is the characteristic of the lowest-lying molecular orbital in cyclic conjugated molecules?
- It is the only orbital that is not degenerate (correct)
- It is always empty
- It comes in a degenerate pair with another orbital
- It is the highest-energy orbital
What is the total number of electrons required to fill the lowest-lying orbital and n succeeding energy levels in cyclic conjugated molecules?
What is the total number of electrons required to fill the lowest-lying orbital and n succeeding energy levels in cyclic conjugated molecules?
- 4n + 2 (correct)
- 2n + 2
- 4n + 1
- 2n + 1
What is the characteristic of an aromatic compound according to Huckel's rule?
What is the characteristic of an aromatic compound according to Huckel's rule?
- It has an odd number of pi electrons
- It has a non-planar structure
- It has 4n + 2 pi electrons (correct)
- It has a localized pi electron system
What is the reason for the equivalence of all C-C bonds in benzene?
What is the reason for the equivalence of all C-C bonds in benzene?
What is the characteristic of an antiaromatic compound?
What is the characteristic of an antiaromatic compound?
What is the reason for cyclooctatetraene not being aromatic?
What is the reason for cyclooctatetraene not being aromatic?
What is the main reason why the annulene with 10 π electrons is not aromatic?
What is the main reason why the annulene with 10 π electrons is not aromatic?
What is the condition for a heterocycle to be aromatic?
What is the condition for a heterocycle to be aromatic?
What is the result of increasing the number of fused benzene rings in Polycyclic Aromatic Hydrocarbons (PAHs)?
What is the result of increasing the number of fused benzene rings in Polycyclic Aromatic Hydrocarbons (PAHs)?
What is necessary for cyclic conjugation to occur in a molecule?
What is necessary for cyclic conjugation to occur in a molecule?
What is the characteristic of a molecule that follows Huckel's rule?
What is the characteristic of a molecule that follows Huckel's rule?
What is the difference between benzene and napthalene in terms of resonance structures?
What is the difference between benzene and napthalene in terms of resonance structures?
What is the main difference between the lone pair of nitrogen in pyridine and the pi electrons in the aromatic ring?
What is the main difference between the lone pair of nitrogen in pyridine and the pi electrons in the aromatic ring?
What is the hybridization of the carbon atoms in the pyridine ring?
What is the hybridization of the carbon atoms in the pyridine ring?
How many pi electrons are present in the pyridine ring?
How many pi electrons are present in the pyridine ring?
Why does pyridine obey Huckel's rule of aromaticity?
Why does pyridine obey Huckel's rule of aromaticity?
What is the shape of the p orbitals in the pyridine ring?
What is the shape of the p orbitals in the pyridine ring?
