MCQ
$2Ca{C_2}\xrightarrow{{{H_2}O}}X\xrightarrow{{C{u_2}C{l_2} + NH{_4}Cl}}Y$ ; $Y$ is
- A$CH \equiv CCu$
- B$CuC \equiv CCu$
- C$CH \equiv C - C \equiv CH$
- ✓$C{H_2} \equiv CH - C \equiv CH$
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