Which of the following graphs represents the correct graph for $S_N1$ reaction?

The number of possible isomeric products formed when $3$-chloro-$1$-butene reacts with $HCl$ through carbocation formation is $.............$.

Assertion : Alkylbenzene is not prepared by Friedel-Crafts alkylation of benzene.
Reason : Alkyl halides are less reactive than acyl halides.

Match the List-$I$ with List-$II$:

List-$I$ Name reaction	List-$II$ Product obtainable
$A.$ Swarts reaction	$I.$ Ethyl benzene
$B.$ Sandmeyer's reaction	$II.$ Ethyl iodide
$C.$ Wurtz Fittig reaction	$III.$ Cyanobenzene
$D.$ Finkelstein reaction	$IV.$ Ethyl fluoride

Choose the correct answer from the options given below:

Which of the following reactions is $NOT$ correctly represented?

How can the following conversions be carried out?
$(i)$ Propene to propan$-1-$ol
$(ii)$ Ethanol to but$-1-$yne
$(iii)$ $1-$Bromopropane to $2-$bromopropane
$(iv)$ Toluene to benzyl alcohol
$(v)$ Benzene to $4-$bromonitrobenzene
$(vi)$ Benzyl alcohol to $2-$phenylethanoic acid
$(vii)$ Ethanol to propanenitrile
$(viii)$ Aniline to chlorobenzene
$(ix)$ $2-$Chlorobutane to $3,4-$dimethylhexane
$(x)$ $2-$Methyl$-1-$propene to $2-$chloro$-2-$methylpropane
$(xi)$ Ethyl chloride to propanoic acid
$(xii)$ But$-1-$ene to $n-$butyliodide
$(xiii)$ $2-$Chloropropane to $1-$propanol
$(xiv)$ Isopropyl alcohol to iodoform
$(xv)$ Chlorobenzene to $p-$nitrophenol
$(xvi)$ $2-$Bromopropane to $1-$bromopropane
$(xvii)$ Chloroethane to butane
$(xviii)$ Benzene to diphenyl
$(xix)$ tert-Butyl bromide to isobutyl bromide
$(xx)$ Aniline to phenylisocyanide