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InterviewSolution
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18 (a) Write the IUPAC name of the following compound:2CHCH3 CH-CH2 CH2-OHName and write the structure of the product formed when ethyne is oxidisedwith cold alkaline solution of KMnO4(b) |
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Answer» The product formed would beethan-1,2-dioic acid (or simplyoxalic acid). Ethyne on reacting with cold KMnO4 adds 4OH- to the triple bond. Forming a very unstable compound (OH)2CH--CH(OH)2. 2 OH- on a single carbon are unstable and the molecule would lose 2H2O and formEthan-1,2-dial.This compund further is unstable and undergoes further oxidation to form oxalic acid. |
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