ozonolysis identification

Question

Alkene producing only ethanal upon ozonolysis is:

RankGuru · Accepted Answer

1. **Ozonolysis Reaction**: $Alkenes + O_3 	o Ozunide \xrightarrow{Zn/H_2O} 	ext{Carbonyl Compounds}$.
2. **Visual Logic**: Simply 'cut' the double bond and place an Oxygen atom at each end of the fragments.
3. **Analyzing Options**:
   - **But-2-ene** ($CH_3-CH=CH-CH_3$): Symmetrical cleavage yields $CH_3CHO$ and $CH_3CHO$ (**two ethanal molecules**).
   - **But-1-ene** ($CH_3-CH_2-CH=CH_2$): Yields Propanal ($CH_3CH_2CHO$) and Methanal ($HCHO$).
   - **2-Methylprop-1-ene** ($ (CH_3)_2C=CH_2$): Yields Acetone ($(CH_3)_2C=O$) and Methanal.
   - **Ethene** ($CH_2=CH_2$): Yields two Methanal molecules.
4. **Conclusion**: Only **But-2-ene** satisfies the condition.

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ozonolysis identification

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