Dalda is prepared from oils by

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:

In the given reaction,what will be the structure of $Z$?

Assertion $(A)$: Propene on addition with hydrogen bromide in the presence of peroxide gives $1-$bromopropane as the major product.
Reason $(R)$: $1-$bromopropane is the major product because it is formed through the stable carbocation.
The correct answer is

Match List-$I$ with List-$II$. Choose the correct answer from the options given below:

The reaction of propene with methylene iodide $(CH_2I_2)$ in the presence of $Zn-Cu$ couple yields .............