If a system has 6 π electrons, what is n in the 4n+2 rule?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the ACS Organic Chemistry Test with multiple choice questions and comprehensive explanations. Utilize flashcards for quick learning and gain confidence for your exam day!

Multiple Choice

If a system has 6 π electrons, what is n in the 4n+2 rule?

Explanation:
Hückel's rule states that a planar cyclic conjugated system is aromatic when it contains 4n + 2 π electrons, where n is a nonnegative integer. For a system with 6 π electrons, set 6 = 4n + 2. Subtracting 2 gives 4n = 4, and dividing by 4 yields n = 1. This value satisfies the rule, since 6 = 4(1) + 2. If n were 0 or 2, the number of π electrons would be 2 or 10, not 6. So, the value is 1.

Hückel's rule states that a planar cyclic conjugated system is aromatic when it contains 4n + 2 π electrons, where n is a nonnegative integer. For a system with 6 π electrons, set 6 = 4n + 2. Subtracting 2 gives 4n = 4, and dividing by 4 yields n = 1. This value satisfies the rule, since 6 = 4(1) + 2. If n were 0 or 2, the number of π electrons would be 2 or 10, not 6. So, the value is 1.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy