Coloration of $Br_2/CCl_4$ will be discharged by

$I$. $(CH_3)_2 C=CH_2 \xrightarrow{KMnO_4 / H^{+}} X + CO_2 + H_2 O$
$II$. $CH_3-CH=CH-CH_3 \xrightarrow{KMnO_4 / H^{+}} Y$
The functional groups in $X$ and $Y$ are respectively

The number of alkene$(s)$ which can produce $2-butanol$ by the successive treatment of $(i)$ $B_{2}H_{6}$ in tetrahydrofuran solvent and $(ii)$ alkaline $H_{2}O_{2}$ solution is:

Which of the following is formed when propene is heated with bromine at high temperature?

The number of $sp^3$ hybridized carbon atoms in cyclohexene is

Which type of bond exists between the two carbon atoms of an alkene?