Which of the Following Statements About Orbital Symmetry and Cycloaddition

question 13

Multiple Choice

Which of the following statements about orbital symmetry and cycloaddition reactions is true?

• A) Thermal cycloadditions involving an even number of  bonds proceed by a suprafacial pathway.
• B) Thermal cycloaddition involving an odd number of  bonds proceed by an antarafacial pathway.
• C) Photochemical cycloadditions involving an even number of  bonds proceed by an antarafacial pathway.
• D) Photochemical cycloadditions involving an even number of  bonds proceed by a suprafacial pathway.

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A transmission pathway for infectious agents through the ingestion of contaminated food or water with fecal matter.

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Fluids produced in the airways, including mucus and saliva, that can trap pathogens and aid in their removal from the respiratory system.

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A chemical liquid used to eliminate or reduce harmful microorganisms on surfaces.