Ethylene reacts with Baeyer's reagent to given

Options

A. Ethane
B. Ethyl alcohol
C. Ethylene glycol
D. none of these

Answer

To solve the question of what compound is produced when ethylene reacts with Baeyer's reagent, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- Ethylene (C2H4) is the reactant. It has a double bond between the two carbon atoms.
- Baeyer's reagent is an alkaline cold solution of potassium permanganate (KMnO4).

2. **Understand Baeyer's Test**:
- Baeyer's reagent is used to test for the presence of double bonds in alkenes. When it reacts with alkenes, it typically oxidizes them to form alcohols.

3. **Reaction Mechanism**:
- When ethylene reacts with Baeyer's reagent, the double bond in ethylene is broken, and the oxygen from KMnO4 adds to the carbon atoms.
- This reaction leads to the formation of a vicinal diol (glycol), specifically a cis-diol.

4. **Write the Balanced Chemical Equation**:
- The balanced reaction can be represented as follows:
\[ C_2H_4 + 2 KMnO_4 + 4 H_2O \rightarrow 2 CH_2(OH)CH_2(OH) + 2 MnO_2 + 2 KOH \]
- Here, the product is 1,2-ethanediol (cis-diol), and manganese dioxide (MnO2) and potassium hydroxide (KOH) are also produced.

5. **Conclusion**:
- The compound produced when ethylene reacts with Baeyer's reagent is 1,2-ethanediol (cis-diol).

### Final Answer:
The compound produced when ethylene reacts with Baeyer's reagent is 1,2-ethanediol (cis-diol).

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