Predict the major product of the reaction shown. Hg2*, H2SO4, H2O а. O b. OH Ос. O d.

Chemistry
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Chapter1: Chemical Foundations
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**Predict the major product of the reaction shown.**

*Reaction conditions:*
- Reagents: \( \text{Hg}^{2+}, \, \text{H}_2\text{SO}_4, \, \text{H}_2\text{O} \)

*Options:*

a. ![Structure of option a](https://via.placeholder.com/150)

b. ![Structure of option b](https://via.placeholder.com/150)

c. ![Structure of option c](https://via.placeholder.com/150)

d. ![Structure of option d](https://via.placeholder.com/150)

**Explanation:**

In this reaction, a terminal alkyne undergoes hydration in the presence of mercuric ion and sulfuric acid. The mechanism typically follows a Markovnikov addition, leading to the formation of a ketone.

### Details on the Options:

- **Option a:** A ketone where the carbonyl group is at the internal carbon position.
- **Option b:** An alcohol with a hydroxyl group at the internal carbon position.
- **Option c:** An enol form where the carbonyl is conjugated to the double bond.
- **Option d:** A ketone similar to option a, with a different orientation/configuration.

**Conclusion:**

The most likely major product of this reaction is a ketone due to the hydration of the alkyne, following Markovnikov's rule.
Transcribed Image Text:**Predict the major product of the reaction shown.** *Reaction conditions:* - Reagents: \( \text{Hg}^{2+}, \, \text{H}_2\text{SO}_4, \, \text{H}_2\text{O} \) *Options:* a. ![Structure of option a](https://via.placeholder.com/150) b. ![Structure of option b](https://via.placeholder.com/150) c. ![Structure of option c](https://via.placeholder.com/150) d. ![Structure of option d](https://via.placeholder.com/150) **Explanation:** In this reaction, a terminal alkyne undergoes hydration in the presence of mercuric ion and sulfuric acid. The mechanism typically follows a Markovnikov addition, leading to the formation of a ketone. ### Details on the Options: - **Option a:** A ketone where the carbonyl group is at the internal carbon position. - **Option b:** An alcohol with a hydroxyl group at the internal carbon position. - **Option c:** An enol form where the carbonyl is conjugated to the double bond. - **Option d:** A ketone similar to option a, with a different orientation/configuration. **Conclusion:** The most likely major product of this reaction is a ketone due to the hydration of the alkyne, following Markovnikov's rule.
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