In the reaction,
$C_5H_6 + CH_3COCH_3 \xrightarrow{EtONa/EtOH, \text{heat}} X$,
the product $(X)$ is

Give the isomers of $C_3H_6$ and their names.

$A$ hydrocarbon $C_5H_8$ consumes two moles of hydrogen. On ozonolysis,it produces $2-$oxopropanal and methanal. The hydrocarbon is:

What are $B$ and $C$ respectively in the following set of reactions?
$C \xleftarrow[\Delta]{Zn} 1,2-\text{dibromopropane}$ $\xrightarrow[\text {(ii) } NaNH_2]{\text {(i) alc. } KOH} A$ $\xrightarrow[\text { Catalyst }]{\text { Lindlar }} B$

$A$ mixture of $C_2H_6, C_2H_4$ and $C_2H_2$ is bubbled through an alkaline solution of copper$(I)$ chloride,contained in a Woulf's bottle. The gas coming out is

Identify the reagents used for the following conversion in the correct order.