The alkene that will give the same product with $HBr$ in the absence as well as in the presence of peroxide is

The major product of the following reaction is $-$

An alkene $'A'$ contains three $C-C$,eight $C-H$ $\sigma$ bonds and one $C-C$ $\pi$ bond. $'A'$ on ozonolysis gives two moles of an aldehyde of molar mass $44 \ u$. Write the $IUPAC$ name of $'A'$.

Which of the following compounds on heating with potassium permanganate $(KMnO_4)$ and dilute sulphuric acid $(H_2SO_4)$ forms adipic acid?

An optically active compound $A$ with molecular formula $C_8H_{14}$ undergoes catalytic hydrogenation to give a meso compound. The structure of $(A)$ is:

In the following given reaction,'$A$' is the major product: