Cyclohexene on oxidation with $KMnO_4$ in dil. $H_2SO_4$ forms.

Identify the products $A$ and $B$ formed in the following reaction:
$CH_3 - CH_2 - CH = CH - CH_3 + HCl \to A + B$

In the following reaction sequence,what are $A$ and $R$ respectively?
$CH_2 = CH_2$ $\xrightarrow{HOCl} A$ $\xrightarrow{R} \begin{array}{c} CH_2OH \\ | \\ CH_2OH \end{array}$

In the reaction given below,the product would be: $CH_3-CH=CH-CH_3 \xrightarrow{H_3O^{+}} CH_3-CH_2-CH(OH)-CH_3$

$CH_3-CH=CH_2 + NOCl \to$ Product (Major). Identify the product.

Ethylene reacts with ozone gas to form the compound