Explain the product of the reaction $CH_3CH=CH_2 + HCl \xrightarrow{\text{peroxide}}$

The number of $sp^3$ hybridized carbon atoms in cyclohexene is

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

The general formula of alkenes is:

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: Cis form of alkene is found to be more polar than the trans form.
Reason $(R)$: Dipole moment of trans isomer of $2$-butene is zero.
In the light of the above statements,choose the correct answer from the options given below:

Consider the given chemical reaction:
$Cyclohexene \xrightarrow[Heat]{KMnO_4, H_2SO_4} \text{Product } A$
Product $A$ is: