Which of the following is a geminal dichloride?

Write structures of the following compounds:
$(i)$ $2-$Chloro$-3-$methylpentane
$(ii)$ $1-$Chloro$-4-$ethylcyclohexane
$(iii)$ $4-$tert-Butyl$-3-$iodoheptane
$(iv)$ $1,4-$Dibromobut$-2-$ene
$(v)$ $1-$Bromo$-4-$sec-butyl$-2-$methylbenzene.

Match the following types of organic halides in List-$I$ with their corresponding examples in List-$II$:

List-$I$	List-$II$
$A$. Vinyl	$I$. $1-$Bromo$-1-$phenylethane
$B$. Allyl	$II$. $3-$Bromotoluene
$C$. Benzyl	$III$. $3-$Bromo$-4-$methylcyclohexene
$D$. Aryl	$IV$. $1-$Bromo$-3-$methylcyclohexene

What are vicinal dihalides? Give examples.

Given below are two statements, one is labeled as Assertion $(A)$ and the other is labeled as Reason $(R)$.
Assertion $(A)$: $CH_2=CH-CH_2-Cl$ is an example of an allyl halide.
Reason $(R)$: Allyl halides are the compounds in which the halogen atom is attached to an $sp^3$ hybridized carbon atom, which is adjacent to a carbon-carbon double bond.
In the light of the two above statements, choose the most appropriate answer from the options given below:

Identify the primary halide among the following compounds.