For the reaction shown below, select the expected major organic product H₂ Pt

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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**Topic: Predicting the Major Organic Product in a Hydrogenation Reaction**

**Question:**  
For the reaction shown below, select the expected major organic product.

**Reaction Scheme:**  
A linear alkyne is shown, with the molecular formula represented as R-C≡C-R', undergoing hydrogenation. The reaction occurs in the presence of hydrogen gas (H₂) and a platinum catalyst (Pt).

**Options:**  
1. A linear alkane  
2. A linear alkene with one double bond  
3. A branched alkene with one double bond  
4. A cyclic compound with a double bond  
5. A linear alkyne with an additional branch

**Explanation:**  
When a triple bond in an alkyne undergoes full hydrogenation in the presence of a catalyst such as platinum, it typically transforms into a single bond, producing an alkane. Therefore, the correct answer is likely the option representing a linear alkane.
Transcribed Image Text:**Topic: Predicting the Major Organic Product in a Hydrogenation Reaction** **Question:** For the reaction shown below, select the expected major organic product. **Reaction Scheme:** A linear alkyne is shown, with the molecular formula represented as R-C≡C-R', undergoing hydrogenation. The reaction occurs in the presence of hydrogen gas (H₂) and a platinum catalyst (Pt). **Options:** 1. A linear alkane 2. A linear alkene with one double bond 3. A branched alkene with one double bond 4. A cyclic compound with a double bond 5. A linear alkyne with an additional branch **Explanation:** When a triple bond in an alkyne undergoes full hydrogenation in the presence of a catalyst such as platinum, it typically transforms into a single bond, producing an alkane. Therefore, the correct answer is likely the option representing a linear alkane.
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