Complete oxidation of hydrocarbons always produces........... as products.

What is $Z$ in the following reaction sequence ?
$C_3H_6$ $\xrightarrow[CCl_4]{Br_2} \underset{\text{(colourless)}}{X}$ $\xrightarrow[\text{(ii) } NaNH_2, \Delta]{\text{(i) } KOH / \text{alcohol}} Y$ $\xrightarrow[\substack{Hg^{2+}, H^{+} \\ 333 \ K}]{H_2O} Z$

Choose the correct option$(s)$ that give$(s)$ an aromatic compound as the major product.

Which of the following compounds was the starting material for the oxidation shown below?

Compound $(C)$ in the above sequence of reaction is:

Total number of enol forms possible for the compound formed during the given reaction will be (including stereoisomers):
$CH_3MgBr + CH_3CH_2COCl \to$