Which of the following general types of compounds is always a heterocyclic compound?
A) a substituted phenol
B) a cyclic ether
C) a cyclic compound with both hydroxy and alkoxy substituents on the ring
D) more than one correct response
E) no correct response

Question

Quizplus · Accepted Answer

A cyclic ether is always a heterocyclic compound because it contains an oxygen atom in the ring, which is a different element from the carbon atoms. Choices A and C are not always heterocyclic compounds as they can have carbon atoms only in the ring. Choice D is incorrect because there is only one correct response.

Which of the Following General Types of Compounds Is Always