Which of the following transformations is an example of a reduction? A CI MgCl Br R1 B R-C=C-R2 R2 Br R1 C R-C=C-R2 R2 Br Br

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**Reduction Reaction Examples: Educational Analysis**

The question posed is: "Which of the following transformations is an example of a reduction?"

**Transformation Descriptions:**

- **Option A:**
  - Reactant: A compound with a chlorine (Cl) atom bonded to a carbon chain.
  - Product: The chlorine atom is replaced by a magnesium chloride (MgCl) group.

- **Option B:**
  - Reactant: A compound with a triple bond (C≡C) between two carbon groups (R₁ and R₂).
  - Product: The triple bond is converted into a double bond (C=C) with two bromine (Br) atoms being added, resulting in a dibromo compound.

- **Option C:**
  - Reactant: Similar to Option B, this compound also has a triple bond (C≡C) between two carbon groups (R₁ and R₂).
  - Product: The product is a saturated alkane chain with two additional bromine (Br) atoms, fully reducing the triple bond to single bonds.

**Assessment:**
- The transformation that is an example of a reduction is Option C, where the alkyne is fully reduced to an alkane, indicating the gain of electrons through the addition of hydrogen atoms (or bromine in this case). 

The checkbox at the bottom reads:
- Option: "all of the shown reactions are reduction reactions" 

In this scenario, particularly focusing on the reduction of carbon-carbon multiple bonds to single bonds or the gain of electrons, Option C best represents a reduction reaction due to the complete saturation of the bonds.
Transcribed Image Text:**Reduction Reaction Examples: Educational Analysis** The question posed is: "Which of the following transformations is an example of a reduction?" **Transformation Descriptions:** - **Option A:** - Reactant: A compound with a chlorine (Cl) atom bonded to a carbon chain. - Product: The chlorine atom is replaced by a magnesium chloride (MgCl) group. - **Option B:** - Reactant: A compound with a triple bond (C≡C) between two carbon groups (R₁ and R₂). - Product: The triple bond is converted into a double bond (C=C) with two bromine (Br) atoms being added, resulting in a dibromo compound. - **Option C:** - Reactant: Similar to Option B, this compound also has a triple bond (C≡C) between two carbon groups (R₁ and R₂). - Product: The product is a saturated alkane chain with two additional bromine (Br) atoms, fully reducing the triple bond to single bonds. **Assessment:** - The transformation that is an example of a reduction is Option C, where the alkyne is fully reduced to an alkane, indicating the gain of electrons through the addition of hydrogen atoms (or bromine in this case). The checkbox at the bottom reads: - Option: "all of the shown reactions are reduction reactions" In this scenario, particularly focusing on the reduction of carbon-carbon multiple bonds to single bonds or the gain of electrons, Option C best represents a reduction reaction due to the complete saturation of the bonds.
The image shows two chemical reactions involving alkyne compounds. 

**Reaction B:**
- Reactant: An alkyne with the general formula \( R_1 - C \equiv C - R_2 \).
- Product: The alkyne is converted to a dibromoalkene with the structure:
  \[
  \begin{align*}
  & \quad R_1 \\
  & \quad | \\
  \text{Br} - \text{C} & \equiv \text{C} - \text{Br} \\
  & \quad | \\
  & \quad R_2
  \end{align*}
  \]

**Reaction C:**
- Reactant: An alkyne with the general formula \( R_1 - C \equiv C - R_2 \).
- Product: The alkyne is converted to a dibromoalkane with the structure:
  \[
  \begin{align*}
  & \quad R_1 \\
  & \quad | \\
  \text{Br} - \text{C} & \----\text{C} - \text{Br} \\
  & \quad | \\
  & \quad R_2
  \end{align*}
  \]

**Question:**
1. Determine which of the following options correctly identifies whether the reactions shown are reduction reactions:
   - Option 1: All of the shown reactions are reduction reactions.
   - Option 2: B
   - Option 3: None of the shown reactions is a reduction reaction.
   - Option 4: C
   - Option 5: A

**Hint:**
- Moving to another question will save this response.
Transcribed Image Text:The image shows two chemical reactions involving alkyne compounds. **Reaction B:** - Reactant: An alkyne with the general formula \( R_1 - C \equiv C - R_2 \). - Product: The alkyne is converted to a dibromoalkene with the structure: \[ \begin{align*} & \quad R_1 \\ & \quad | \\ \text{Br} - \text{C} & \equiv \text{C} - \text{Br} \\ & \quad | \\ & \quad R_2 \end{align*} \] **Reaction C:** - Reactant: An alkyne with the general formula \( R_1 - C \equiv C - R_2 \). - Product: The alkyne is converted to a dibromoalkane with the structure: \[ \begin{align*} & \quad R_1 \\ & \quad | \\ \text{Br} - \text{C} & \----\text{C} - \text{Br} \\ & \quad | \\ & \quad R_2 \end{align*} \] **Question:** 1. Determine which of the following options correctly identifies whether the reactions shown are reduction reactions: - Option 1: All of the shown reactions are reduction reactions. - Option 2: B - Option 3: None of the shown reactions is a reduction reaction. - Option 4: C - Option 5: A **Hint:** - Moving to another question will save this response.
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