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.
Last updated
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.
Practise Chemistry of Hydrocarbons
1,091 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
3-dimethyl-2-butene on reaction with O3/H2O yields two molecules of:
3-Ethyl-2-Pentene on ozonolysts gives:
A gas decolorized alkaline KMnO4 solution but does not give any PPT with ammoniacal AgNO3
According to Markovnikov's rule, when hydrogen bromide adds to propene the major product is
Addition of HCl to propene forms _?