Which of the following statements is wrong?

Provide the chemical reactions for the following conversions:
$1$. $2$-bromopropane and $1$-bromopropane from propene.
$2$. $2$-bromopropane from $1$-bromopropane.

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

Match the reactions in Column-$I$ with their mechanisms in Column-$II$.

Column-$I$ (Reaction)	Column-$II$ (Mechanism)
$(A)$ $OH^- + CH_3Cl \to HOCH_3 + Cl^-$	$(1)$ $S_N2$ mechanism
$(B)$ $(CH_3)_3CBr + OH^- \to (CH_3)_3COH + Br^-$	$(2)$ $S_E2$ aromatic
$(C)$ $CH_3CH_2Br \xrightarrow[ethanol]{KOH} CH_2 = CH_2$	$(3)$ $S_N1$ mechanism
$(D)$ $C_6H_6 + Br_2 \xrightarrow{Fe} C_6H_5Br + HBr$	$(4)$ $\beta$-elimination (dehydrohalogenation)

Predict the major product of the following reaction sequence $:-$

Alkyl halide $\xrightarrow[\text{Ether}]{Mg}$ Grignard Reagent $\xrightarrow{H_2O}$ Propane,then alkyl halide may be :-