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Answer on Organic Chemistry Question for Aqib zaman

Question #25045
how will you synthesis:
1)Acetylene from ethylene
2)1-Butyne from Acetylene
Expert's answer
1) H2C=CH2 + Br2 --> Br-HC=CH-Br

Br-HC=CH-Br + KOH (in alcohol) --> HC=CH

2) HC=CH+ Na ---> HC=CNa

HC=CNa+ CH3Cl --> HC=C-CH3

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