Cyclohexene on oxidation with $KMnO_4$ in dil. $H_2SO_4$ forms.

An alkene $X$ $(C_4H_8)$ exhibits geometrical isomerism. Oxidation of $X$ with $KMnO_4 | H^+$ gives $Y$. On heating the sodium salt of $Y$ with a mixture of $NaOH$ and $CaO$,$Z$ is obtained. What is $Z$?

Which of the following reagents convert propene to $1-$propanol?

When $2-$butyne is treated with $H_2/$ Lindlar's catalyst,compound $X$ is produced as the major product and when treated with $Na/liq. NH_3$ it produces $Y$ as the major product. Which of the following statements is correct?

Find the major product for the reaction shown below.

$CH_3-CH=CH_2 \xrightarrow{HBr} \text{Major product } (A). \text{ } A \text{ is:}$