Quiz - Heterocycles | Heterocycles
Which of the following statements is incorrect?
Pyrrole has more aromatic character than furan
Pyridine is a tertiary amine
Pyridine is isoelectronic with benzene
Heterocyclopropanes are more reactive than heterocyclobutanes
How many electrons of nitrogen contribute to the π-system of pyrrole and pyridine?
Pyrrole: 1, Pyridine: 1
Pyrrole: 1, Pyridine: 2
Pyrrole: 2, Pyridine: 1
Pyrrole: 2, Pyridine: 2
Where does electrophilic substitution usually occur in furan?
At the C2 atom
At the C3 atom
At the O atom
All of the above
What is the correct order of the reactivity of pyrrole, furan and thiophene towards electrophiles?
Pyrrole > furan > thiophene
Pyrrole > thiophene > furan
Furan > pyrrole > thiophene
Thiophene > pyrrole > furan
What is the process of the reaction between 4-bromopyridine and sodium ethoxide?
Addition
Elimination
Electrophilic substitution
Nucleophilic substitution
Which of the following statements is incorrect?
Pyridine is less reactive towards electrophiles than benzene
Pyridine and benzene can undergo nucleophilic substitution
Pyridine is electron poor compared to benzene
Both pyridine and benzene react with an alkyllithium to form a C-C bond