Write the structure of the major organic product in each of the following reactions:
(i) `CH_(3)CH_(2)CH_(2)Cl + NaI underset("heat")overset("acetone")rarr`
(ii) `(CH_(3))_(3)CBr + KOH underset("heat")overset("ethanol")rarr`
(iii) `CH_(3)CH(Br)CH_(2)CH_(3) + NaOH overset("water")rarr`
(iv) `CH_(3)CH_(2)Br + KCN overset("aq. ethanol"rarr`
(v) `C_(6)H_(5)ONa + C_(2)H_(5)Cl rarr`
(vi) `CH_(3)CH_(2)CH_(2)OH + SOCl_(2) rarr `
(vii) `CH_(3)CH_(2)CH = CH_(2) + HBr overset("peroxide")rarr`
(viii) `CH3CH = C(CH3)2 + HBr rarr`

Explanation

(i) `underset("1-Chloropropane")(CH_(3)CH_(2)CH_(2)Cl)+NaI underset(("Finkelstein reaction"))overset("acetone, heat")to underset("1-Iodopropane")(CH_(3)CH_(2)CH_(2)I)+NaCl`
(ii) `underset("2-Bromo-2-methylpropane")((CH_(3))_(3)CB r)+KOH underset(("Dehydrohalogenation"))overset("ethanol, heat")to underset("2-Methylpropene")(CH_(3)-overset(CH_(3))overset(|)(C)=CH_(2))+HB r +H_(2)O`
(iii) `underset("2-Bromobutane")(CH_(3)-underset(Br)underset(|)(C)H-CH_(2)CH_(3))+NaOH underset(("Hydrolysis"))overset("water")to underset("Butan-2-ol")(CH_(3)-underset(OH)underset(|)(C)H-CH_(2)CH_(3))+NaBr`
(iv) `underset("Bromoethane")(CH_(3)CH_(2)-Br)+KCN underset(("Nucleophilic substitution"))overset("aq. ethanol")to underset("Propanenitrile")(CH_(3)CH_(2)-CN+KB r)`
(v) `underset("Sod. phenoxide")(C_(6)H_(5)O^(-)Na^(+))+underset("Ethyl chloride")(C_(2)H_(5)-Cl) underset("synthesis")overset("Williamson")to underset("Phenetole")(C_(6)H_(5)-O-C_(2)H_(5))+NaCl`
(vi) `underset("Propan-1-ol")(CH_(3)CH_(2)CH_(2)OH)+SOCl_(2) underset("substitution")overset("Nucleophilic")to underset("1-Chloropropane")(CH_(3)CH_(2)CH_(2)Cl)+HCl uarr+SO_(2)uarr`
(vii) `underset("But-1-ene")(CH_(3)CH_(2)CH=CH_(2))+HB r underset(("Anti-Mark. addn."))overset("peroxide")to underset("1-Bromobutane")(CH_(3)CH_(2)CH_(2)CH_(2)Br)`
(viii) `underset("2-Methylbut-2-ene")(CH_(3)-CH=overset(CH_(3))overset(|)(C)-CH_(3))+HBr overset("Mark. addn.")to underset("2-Bromo-2-methylbutane")(CH_(3)-CH_(2)-underset(Br)underset(|)overset(CH_(3))overset(|)(C)-CH_(3))`