Propylene on hydrolysis with sulphuric acid forms

Predict the product$(s)$ obtained for the following reaction:
$3$-methylcyclopentene + $Br_2 / CCl_4 \rightarrow ?$

Write the $IUPAC$ names of the products obtained by the addition reaction of $HBr$ to $hex-1-ene$:
$(i)$ in the absence of peroxide and
$(ii)$ in the presence of peroxide.

Suppose the following reaction sequence: $CH \equiv CH$ $\xrightarrow[\text{excess}]{NaNH_2 / \text{liq. } NH_3} A$ $\xrightarrow{2 CH_3 - I} B$ $\xrightarrow{H_2 / Pd - BaSO_4, \text{ quinoline}} C$ and $C$ $\xrightarrow{H_2 / Pd - BaSO_4, \text{ quinoline}}$ $\xrightarrow{NaNH_2 / \text{liq. } NH_3} D$. How are $C$ and $D$ related?

What is hydrogenation reaction?

What is the product of the reaction of $CH_3CH=CH-C_6H_4-OH$ with $HBr$?