Identify the product $A$ formed when the following compound is treated with $KMnO_4 / H^+$.

The addition of $HI$ to the double bond of propene yields isopropyl iodide and not $n$-propyl iodide because the addition proceeds through the formation of:

Reaction of $Br_2$ on ethylene in the presence of $NaCl$ gives:

Statement-$I$ :- Ozonolysis reaction is used to locate the position of a double bond in an alkene.
Statement-$II$ :- When $but-1-ene$ and $but-2-ene$ are subjected to ozonolysis separately,both yield the same product.
In the light of the above statements,select the correct option.

In organic reactions, sodium in liquid ammonia is used as:

Alkenes usually show which type of reaction?