Which of the following structures have carbon with sp² hybridization state?

Name: Which of the following structures have carbon with sp 2 hybridization state?
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Question

Quizplus · Accepted Answer

Structure I has sp3 hybridization, while structure II has sp2 hybridization. Structure III has sp2 hybridization, while structure IV has sp3 hybridization. Therefore, the only structures that have a carbon with sp² hybridization are structures I and IV. Thus, the answer is E.

Which of the Following Structures Have Carbon with Sp2 Hybridization

Which of the Following Structures Have Carbon with Sp² Hybridization