What is produced when glycerol is heated with oxalic acid at $110\,^{\circ}C$?

$CH_2 = CH_2$ $\xrightarrow{HBr} X$ $\xrightarrow{\text{Hydrolysis}} Y$ $\xrightarrow[I_2 \text{ excess}]{Na_2CO_3} Z$. What is $Z$ in the given reaction?

Which is the best method to prepare cyclohexene from cyclohexanol?

An organic compound dissolved in dry benzene evolved hydrogen on treatment with sodium. It is

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

An oxygen-containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by $14$ units. The organic compound is