MCQ
Select the molecule which has only one $\pi - {\rm{bond}}$
- A$CH \equiv CH$
- B$C{H_2} = CHCHO$
- ✓$C{H_3}CH = C{H_2}$
- D$C{H_3}CH = CHCOOH$
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$A\,\xrightarrow[{1200\,\,atm}]{{470\,\,K}}B$
$A\,\xrightarrow[{C{O_2}\, - \,atm}]{{570\,\,K}}C$
$C{l_2} + 2B{r^ - }\left( {aq} \right) \to 2C{l^ - }\left( {aq} \right) + B{r_2}$
$Br_2$ gas thus formed is dissolved into solution of $Na_2CO_3$ and then pure $Br_2$ is obtained by treatment of the solution with