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Which of the following can complete the reaction below? O Br2/FeBr3 O NBS/(PhCO2)2 O H2SO4 in boling water O H₂, Pt, Ethanol at 130 atm ?

Which of the following can complete the reaction below? O Br2/FeBr3 O NBS/(PhCO2)2 O H2SO4 in boling water O H₂, Pt, Ethanol at 130 atm ?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### Reaction Completion Question **Question:** Which of the following can complete the reaction below? **Chemical Reaction:** The chemical equation shows the transition from a benzene ring to a cyclohexane ring with two substituent groups attached. **Options:** 1. O Br₂/FeBr₃ 2. O NBS/(PhCO₂)₂ 3. O H₂SO₄ in boiling water 4. O H₂, Pt, Ethanol at 130 atm **Explanation of Options:** 1. **Br₂/FeBr₃:** Typically used for bromination of aromatic rings. 2. **NBS/(PhCO₂)₂:** Generally used for allylic or benzylic bromination. 3. **H₂SO₄ in boiling water:** Commonly used for hydrolysis reactions. 4. **H₂, Pt, Ethanol at 130 atm:** This indicates hydrogenation in the presence of platinum as a catalyst and ethanol as the solvent, under high pressure. **Graphical / Diagram Explanation:** - The left side of the equation depicts a benzene ring. - The right side represents a cyclohexane ring with two substituents, indicative of full hydrogenation of the aromatic ring to a saturated ring system. **Answer Explanation:** The correct option for the completion of this reaction is **H₂, Pt, Ethanol at 130 atm** (Option 4), indicating the hydrogenation of the benzene to cyclohexane with two additional hydrogen substituents at specific positions.
Transcribed Image Text:### Reaction Completion Question **Question:** Which of the following can complete the reaction below? **Chemical Reaction:** The chemical equation shows the transition from a benzene ring to a cyclohexane ring with two substituent groups attached. **Options:** 1. O Br₂/FeBr₃ 2. O NBS/(PhCO₂)₂ 3. O H₂SO₄ in boiling water 4. O H₂, Pt, Ethanol at 130 atm **Explanation of Options:** 1. **Br₂/FeBr₃:** Typically used for bromination of aromatic rings. 2. **NBS/(PhCO₂)₂:** Generally used for allylic or benzylic bromination. 3. **H₂SO₄ in boiling water:** Commonly used for hydrolysis reactions. 4. **H₂, Pt, Ethanol at 130 atm:** This indicates hydrogenation in the presence of platinum as a catalyst and ethanol as the solvent, under high pressure. **Graphical / Diagram Explanation:** - The left side of the equation depicts a benzene ring. - The right side represents a cyclohexane ring with two substituents, indicative of full hydrogenation of the aromatic ring to a saturated ring system. **Answer Explanation:** The correct option for the completion of this reaction is **H₂, Pt, Ethanol at 130 atm** (Option 4), indicating the hydrogenation of the benzene to cyclohexane with two additional hydrogen substituents at specific positions.
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