Ⓒ Macmillan Learning B. CH, OH, heat H+, NaOCH3, DMSO Br MAL H3C- H3C CH3 Identify the best conditions for Reaction B. cat. H*, NaOCH3, DMSO cat. H+, NaOCH, CH₂OH NaOCH3, DMSO CH₂OH, heat NaOCH3, CH₂OH H3C. Lan H3C CH3 H3C

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Chapter6: Thermochemistry
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Problem 114AE: Consider the two space shuttle fuel reactions in Exercises 81 and 82. Which reaction produces more...
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## Question 5 of 30

**A.**
- ○ CH₃OH, heat
- ○ H⁺, NaOCH₃, DMSO

**B. (Chemical Reaction Diagram)**
The diagram shows a chemical reaction of Bromocyclohexane with some reagents resulting in a different product.

### Reactants:
- A bromocyclohexane molecule with formula: C₇H₁₅Br

### Products:
- An oxygen-containing compound with the chemical structure indicated by: CH₃-CH(OCH₃)-CH₂-CH₃

### Instruction:
Identify the best conditions for Reaction B.

**Options:**
- ○ cat. H⁺, NaOCH₃, DMSO
- ○ cat. H⁺, NaOCH₃, CH₃OH
- ○ NaOCH₃, DMSO
- ○ CH₃OH, heat
- ○ NaOCH₃, CH₃OH

### Explanation:
In the reaction, Bromocyclohexane is converted to a methoxy-substituted cyclohexane, which involves the replacement of the bromine atom with a methoxy group (OCH₃). The reagent and appropriate conditions should favor such a substitution reaction.

**Note:** 
While the exact mechanism for suggesting the best conditions isn't explained, knowledge about organic substitution reactions can assist in deducing it. For such a substitution reaction to replace bromine with a methoxy group, an appropriate base and solvent conditions are necessary.
Transcribed Image Text:## Question 5 of 30 **A.** - ○ CH₃OH, heat - ○ H⁺, NaOCH₃, DMSO **B. (Chemical Reaction Diagram)** The diagram shows a chemical reaction of Bromocyclohexane with some reagents resulting in a different product. ### Reactants: - A bromocyclohexane molecule with formula: C₇H₁₅Br ### Products: - An oxygen-containing compound with the chemical structure indicated by: CH₃-CH(OCH₃)-CH₂-CH₃ ### Instruction: Identify the best conditions for Reaction B. **Options:** - ○ cat. H⁺, NaOCH₃, DMSO - ○ cat. H⁺, NaOCH₃, CH₃OH - ○ NaOCH₃, DMSO - ○ CH₃OH, heat - ○ NaOCH₃, CH₃OH ### Explanation: In the reaction, Bromocyclohexane is converted to a methoxy-substituted cyclohexane, which involves the replacement of the bromine atom with a methoxy group (OCH₃). The reagent and appropriate conditions should favor such a substitution reaction. **Note:** While the exact mechanism for suggesting the best conditions isn't explained, knowledge about organic substitution reactions can assist in deducing it. For such a substitution reaction to replace bromine with a methoxy group, an appropriate base and solvent conditions are necessary.
**Question 5 of 30**

---

### Select the best conditions for the reactions.

**A.**

![Chemical Reaction] 

The image depicts a chemical reaction where a molecule with the structure:

```
       CH₃
        |
       CH₃-CH⁻-CH₂-CH₂-Br   →   CH₃-CH⁻-CH₂-CH₂-O-CH₃ 
                                          |
                                      CH₃
```

is transformed into another molecule with the structure:

```
   CH₃   CH₃
  |       |
CH₃-CH-CH₂-CH₂-O-CH₃
```

#### Identify the best conditions for Reaction A.

- ☐ **H⁺, NaOCH₃, CH₃OH**
- ☐ **NaOCH₃, DMSO**
- ☐ **NaOCH₃, CH₃OH**
- ☐ **CH₃OH, heat**
- ☐ **H⁺, NaOCH₃, DMSO**

---

In this question, you need to determine which set of conditions will facilitate the given chemical transformation. Each option presents a different combination of reagents and solvent conditions that can affect the progress and yield of the reaction indicated. Analyzing the chemical structure and predicting the mechanism can guide you toward selecting the optimal reaction conditions.
Transcribed Image Text:**Question 5 of 30** --- ### Select the best conditions for the reactions. **A.** ![Chemical Reaction] The image depicts a chemical reaction where a molecule with the structure: ``` CH₃ | CH₃-CH⁻-CH₂-CH₂-Br → CH₃-CH⁻-CH₂-CH₂-O-CH₃ | CH₃ ``` is transformed into another molecule with the structure: ``` CH₃ CH₃ | | CH₃-CH-CH₂-CH₂-O-CH₃ ``` #### Identify the best conditions for Reaction A. - ☐ **H⁺, NaOCH₃, CH₃OH** - ☐ **NaOCH₃, DMSO** - ☐ **NaOCH₃, CH₃OH** - ☐ **CH₃OH, heat** - ☐ **H⁺, NaOCH₃, DMSO** --- In this question, you need to determine which set of conditions will facilitate the given chemical transformation. Each option presents a different combination of reagents and solvent conditions that can affect the progress and yield of the reaction indicated. Analyzing the chemical structure and predicting the mechanism can guide you toward selecting the optimal reaction conditions.
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