We Now Know That the Two Kekulé Structures for Benzene

question 102

Multiple Choice

We now know that the two Kekulé structures for benzene are related in the following way:

• A)They are each equally correct as a structure for benzene.
• B)Benzene is sometimes one structure and sometimes the other.
• C)The two structures are in a state of rapid equilibrium.
• D)Neither of the two structures adequately describes benzene; benzene is a resonance hybrid of the two.
• E)None of these choices.

---

Definitions:

Sample Size

The number of subjects or observations included in a sample selected from a population for the purpose of a statistical study.

Confidence Interval

An interval of values within which there is a given level of confidence (e.g., 95%) where the population value lies.

Increased Accuracy

The enhancement of precision or correctness in measurement, observation, or analysis.

Simple Random Sampling

A method of selecting a sample in which every member of the population has an equal chance of being chosen.