The reaction conditions used for converting $1, 2$-dibromoethane to ethylene are:

Which products are obtained on reaction of but$-1-$ene with $HBr$ in the presence of peroxide?

The energy profile diagram for the dehydration of $2-$butanol using concentrated $H_2SO_4$ is given below. The product $(b)$ of the above reaction is:

Ozonolysis of an alkene produces only one dicarbonyl compound. The structure of the alkene is:

For the given reaction sequence,identify $C$ and $D$:
$3\text{-methylbut-1-ene}$ $\xrightarrow[(ii) NaBH_4]{(i) Hg(OAc)_2/H_2O} A$ $\xrightarrow{H^\oplus/\Delta} B$ $\xrightarrow{O_3/Zn/H_2O} C + D$

Addition of bromine on propene in the presence of brine yields a mixture of :