$CH_3-CH=CH-CH=CH_2 \xrightarrow[Zn]{O_3 / H_2O}$ Which will not form?

$A$ hydrocarbon contains $86\%$ carbon. $488 \ mL$ of the hydrocarbon weighs $1.68 \ g$ at $STP$. Then the hydrocarbon is an:

In the acid-catalyzed hydration of alkenes,other than ethene,which of the following is formed?

$3-$Methylhex$-2-$ene on reaction with $HBr$ in the presence of peroxide forms an addition product $(A)$. The number of possible stereoisomers for '$A$' is $....$.

What is the correct order of reactivity of alkenes towards acid-catalyzed hydration to form alcohols?

Given below are two statements:
Statement-$I$:
$trans$-But-$2$-ene upon treatment with $Br_2$ in $CCl_4$ gives the following product:
(Image provided)
Statement-$II$:
$cis$-But-$2$-ene upon treatment with alkaline $KMnO_4$ gives the following product:
(Image provided)
In the light of the above statements, choose the most appropriate answer from the options given below.