Oils are converted into fats by

Which of the following compounds was the starting material for the oxidation shown below?
$Compound \xrightarrow{KMnO_4 / H^{\oplus}} \text{Product}$

What is the hydroboration-oxidation reaction? Explain it with an example.

On catalytic reduction $(H_2 / Pt)$,how many alkenes will give $n$-butane?

Which of the following is the most stable alkene?

The conversion$(s)$ that can be carried out by bromine in carbon tetrachloride $(CCl_4)$ solvent is/are: