The compound $B$ formed in the following sequence of reactions is:
$CH_3-CH_2-CH_2-OH$ $\xrightarrow{PCl_3} A$ $\xrightarrow{Alco. KOH} B$

Which intermediate is formed when $HCl$ is added to propene in the presence of peroxide?

What are $X$ and $Y$ in the following reaction?
Pent-$2$-ene $\xrightarrow[(ii) Zn / H_2O]{(i) O_3} X + Y$

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?

Oxidation of cyclohexene in the presence of acidic potassium permanganate leads to:

Ozonolysis of an alkene with molecular formula $C_{7}H_{14}$ in the presence of $Zn$ dust gives a mixture of acetone and $butan-2-one$. The $IUPAC$ name of the alkene is ..........