Which of the Following Statements Concerning Electrocyclic Reactions Is Correct

question 5

Multiple Choice

Which of the following statements concerning electrocyclic reactions is correct?

• A)The ground state HOMO of a compound with an even number of conjugated double bonds is asymmetric.
• B)The allowed mode of ring closure under thermal conditions for a molecule containing an even number of conjugated double bonds is disrotatory.
• C)The allowed mode of ring closure under photochemical conditions for a molecule containing an odd number of conjugated double bonds is disrotatory.
• D)both B and C
• E)none of the above

---

Definitions:

Concise Document

A document designed to present information clearly and briefly, avoiding unnecessary detail or verbosity.

Typefaces

Designs of lettering and characters that comprise a set of fonts used in printing and visual digital content creation.

Mobile Devices

Portable electronic devices such as smartphones and tablets that have computing capabilities.

Margins

The blank spaces surrounding the text on a page or screen, or the difference between the cost and selling price of goods.