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  4. Acetylene and HCHO react in presence of copper acetylide catalyst to form:

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Q. Acetylene and $ HCHO $ react in presence of copper acetylide catalyst to form:

Haryana PMTHaryana PMT 2000

Solution:

$\underset{\text{Acetylene}}{CH \equiv CH }+2 HCHO \rightarrow \underset{2-\text{butyne} -1,4- \text{diol}}{CH _{2} OH - C \equiv C - CH _{2} OH}$