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Choose the best reagents to complete the reaction shown below. H2(g) A Pt H2(g) B Lindlar's catalyst H2(g) Na NH3(1) 1. NABH4 E 2. H30*

Choose the best reagents to complete the reaction shown below. H2(g) A Pt H2(g) B Lindlar's catalyst H2(g) Na NH3(1) 1. NABH4 E 2. H30*

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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**Educational Website Content: Reaction Completion Using Reagents** **Objective:** Choose the best reagents to complete the reaction depicted below. **Reaction Overview:** The schematic shows an organic compound transformation. The initial structure consists of a hydrocarbon with two triple bonds, transforming into a hydrocarbon with a single bond between carbon atoms in the final structure. **Reagent Options:** - **A.** \( \text{H}_2(\text{g}) \) / Pt - Hydrogen gas in the presence of a platinum catalyst. - **B.** \( \text{H}_2(\text{g}) \) / Lindlar's catalyst - Hydrogen gas with Lindlar’s catalyst, used for partial hydrogenation to convert alkynes to cis-alkenes. - **C.** \( \text{H}_2(\text{g}) \) - Hydrogen gas, potentially indicating a general hydrogenation process. - **D.** Na / \( \text{NH}_3(\text{l}) \) - A sodium metal and liquid ammonia setup, typically for dissolving metal reductions to convert alkynes to trans-alkenes. - **E.** 1. \( \text{NaBH}_4 \) 2. \( \text{H}_3\text{O}^+ \) - Sodium borohydride followed by acid, a common reduction method for carbonyl functionalities. **Visual Representation:** - The initial line structure shows a hydrocarbon with multiple triple bonds (depicted with three parallel lines). - Following the reagent interaction, the final line structure exhibits a hydrocarbon with a singular bond style, indicating complete reduction. **Task:** Analyze the transformation and choose the appropriate reagent that accomplishes the desired conversion effectively. Consider the nature of each reagent and the extent of hydrogenation required for this chemical reaction.
Transcribed Image Text:**Educational Website Content: Reaction Completion Using Reagents** **Objective:** Choose the best reagents to complete the reaction depicted below. **Reaction Overview:** The schematic shows an organic compound transformation. The initial structure consists of a hydrocarbon with two triple bonds, transforming into a hydrocarbon with a single bond between carbon atoms in the final structure. **Reagent Options:** - **A.** \( \text{H}_2(\text{g}) \) / Pt - Hydrogen gas in the presence of a platinum catalyst. - **B.** \( \text{H}_2(\text{g}) \) / Lindlar's catalyst - Hydrogen gas with Lindlar’s catalyst, used for partial hydrogenation to convert alkynes to cis-alkenes. - **C.** \( \text{H}_2(\text{g}) \) - Hydrogen gas, potentially indicating a general hydrogenation process. - **D.** Na / \( \text{NH}_3(\text{l}) \) - A sodium metal and liquid ammonia setup, typically for dissolving metal reductions to convert alkynes to trans-alkenes. - **E.** 1. \( \text{NaBH}_4 \) 2. \( \text{H}_3\text{O}^+ \) - Sodium borohydride followed by acid, a common reduction method for carbonyl functionalities. **Visual Representation:** - The initial line structure shows a hydrocarbon with multiple triple bonds (depicted with three parallel lines). - Following the reagent interaction, the final line structure exhibits a hydrocarbon with a singular bond style, indicating complete reduction. **Task:** Analyze the transformation and choose the appropriate reagent that accomplishes the desired conversion effectively. Consider the nature of each reagent and the extent of hydrogenation required for this chemical reaction.
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