$A$ compound $X$ with molecular formula $C_3H_8O$ can be oxidized to a compound $Y$ with the molecular formula $C_3H_6O_2$. $X$ is most likely to be

$pent-3-ol$ is a

Identify the major product $P_3$ in the following reaction sequence:

In the given pairs of alcohols,in which pair is the second alcohol more reactive than the first towards hydrogen bromide $(HBr)$?

When concentrated $H_2SO_4$ reacts with $X$ at a temperature of $160 - 170 \, ^\circ C$,ethylene is obtained. What is $X$?

$X + HCl$ $\xrightarrow[\text{Addition}]{\text{Anhy. } AlCl_3} C_2H_5Cl \xleftarrow[\text{Substitution}]{\text{Anhy. } ZnCl_2/HCl} Y$. The conversion of $Y$ to $X$ can be achieved by heating with .......... at .......... temperature.