MCQ
In the given reactions identify $A$ and $B$.


- ✓$A$:--Pentyne$B$: trans-$2$-butene
- B$A$:$n$-Pentane$B$:trans-$2$-tebutene
- C$A$: $2$-Pentyne $B$:Cis-$2$-butene
- D$A$:$n$-Pentane $B$:Cis-$2$-butene


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$\begin{array}{*{20}{c}}
{C{H_3}C{H_2} - N - C{H_2}C{H_3}} \\
{|\,} \\
{C{H_3}}
\end{array}$
is :
$(iii)$ Ionisation energy $(iv)$ Metallic character