How would you convert ethene(ethylene) into acetylene (ethyne)

Here is the way to convert ethene(ethylene) into acetylene(ethyne).The IUPAC name of ethylene is ethene and the IUPAC name of acetylene is ethyne.Here are the steps:
How would you convert ethene(ethylene) into acetylene (ethyne)


How would you convert ethene(ethylene) into acetylene (ethyne)
How would you convert ethene(ethylene) into acetylene (ethyne)

                      Step-1:
Ethene(ethylene) reacts with liquid bromine (Br2) in presence of CCl4 and produces 1,2-dibromoethane.



Tip:    
how would you convert ethene into acetylene?

               

                      Step-2:

1,2-Dibromoethane reacts with alcoholic KOH and produces acetylene(ethyne).
1,2-dibromoethane reacts with alkoholic KOH and produces acetylene(ethyne)




Tip:
how would you convert ethene into acetylene?





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