In the presence of Zn, Hydrolysis of ozonide of 1-butene gives:_____________?
Correct answer: C. Propionaldehyde and Formaldehyde
- A. Ethylene only
- B. Acetaldehyde and Formaldehyde
- C. Propionaldehyde and Formaldehyde
- D. Acetaldehyde only
- E. Acetaldehyde and Oxalic acid
Explanation
Reductive ozonolysis cleaves the double bond of 1-butene, CH2=CH-CH2-CH3, into methanal, HCHO, from the terminal carbon and propanal, CH3CH2CHO, from the other carbon. Therefore, the products are propionaldehyde and formaldehyde. The likely mistake is choosing acetaldehyde and formaldehyde, which would result from ozonolysis of propene rather than 1-butene.
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About Alkenes
Alkenes are unsaturated hydrocarbons containing a carbon-carbon double bond with sigma and pi components and restricted rotation. Their reactions include electrophilic addition of hydrogen, halogens, hydrogen halides and water, with Markovnikov orientation, oxidation, combustion and polymerisation, while their preparation commonly involves elimination from alkyl halides or alcohols.
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