The product of the reaction is:

How many $\sigma$ and $\pi$ bonds are present in the following?
$(a)$ $But-1-ene-3-yne$
$(b)$ $Buta-1,3-diene$
$(c)$ $CH_2=CH-C\equiv N$
$(d)$ $Propa-1,2-diene$
$(e)$ $1-butyne$ and $2-butane$

Which of the following compounds shall not produce propene by reaction with $HBr$ followed by elimination or direct only elimination reaction?

Name the distinguishing reaction of an alkane from an alkene.

The decreasing order of heat evolved upon catalytic hydrogenation of the given reactants with $H_2\ (Pd/C)$ is:

The total number of sigma $(\sigma)$ and pi $(\pi)$ bonds present in $\text{hex}-1-\text{en}-4-\text{yne}$ are respectively: