Which among the following methods is not used for the manufacture of isoprene?(a) Isomerization of propylene dimer(b) Isobutylene formaldehyde reaction(c) Methyl ethyl ketone formaldehyde reaction(d) Ethylene cyanohydrin pyrolysisThis question was addressed to me at a job interview.Origin of the question is C3 Compounds in portion Synthetic Organic Chemical Industries of Chemical Technology

Which among the following methods is not used for the manufacture of i

1.	Which among the following methods is not used for the manufacture of isoprene?(a) Isomerization of propylene dimer(b) Isobutylene formaldehyde reaction(c) Methyl ethyl ketone formaldehyde reaction(d) Ethylene cyanohydrin pyrolysisThis question was addressed to me at a job interview.Origin of the question is C3 Compounds in portion Synthetic Organic Chemical Industries of Chemical Technology
Answer» RIGHT answer is (d) Ethylene cyanohydrin pyrolysis Explanation: Ethylene cyanohydrin pyrolysis is DONE for the manufacture of industrial acrylonitrile whereas Isomerization of propylene dimer, Isobutylene formaldehyde REACTION and METHYL ETHYL ketone formaldehyde reaction is done for the manufacture of isoprene.

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