Question

19. Which is the correct assignment of the names of the following substituted benzenes? OH CH dae OH a. 1-phenol; 2 = m-cresol; 3 toluene b. 1 = m-cresol; 2 - resorcinol; 3 = m-xylene c. 1-anisole; 2 = catechol; 3 = m-xylene d. 1 = m-cresol; 2 - anisole; 3-cumene 20. What is the correct assignment of the names of the following heterocycles? a. 1 = pyrrole; 2=thiophene; 3 = pyridine b. 1 = thiophene; 2 = furan; 3 = pyrrole c. 1 = pyridine; 2=thiophene; 3 = furan d. 1 -pyridine; 2 =thiophene; 3 = pyrrole 21. What is the correct assignment of the names of the following fused arenes? a. 1 - naphthalene; 2 - anthracene; 3 = pyrene b. 1 - naphthalene; 2-phenanthrene; 3 = coronene c. 1 = naphthalene; 2 - anthracene; 3 = benzo(a)pyrene d. 1 = anthracene: 2 naphthalene; 3 = coronene

Answer 1

-OH reshcino m- xylerne © m-cresol ⓇO Furan. © pysidine Thiophene Anthracene pyrene @ Naphthalene