How will you convert the following:
(i) Isopropyl chloride to n-propyl chloride (ii) Methyl bromide to ethylamine
(iii) Chlorobenzene to benzoic acid (iv) Methyl bromide to acetic acid
(v) Propane to allyl chloride (vi) 1-Bromopropane to 2-bromopropane
(vii) Propene to propyne (viii) Ethanol to but-1-yne

Explanation

(i)
(ii) `underset("Methyl bromide")(CH_(3)Br) overset(KCN)to CH_(3)CN underset(Na // C_(2)H_(5)OH)overset(4[H])to underset("Ethylamine")(CH_(3)CH_(2)NH_(2))`
(iii)
(iv) `CH_(3)Br overset(KCN)to CH_(3)CN overset(H^(+), H_(2)O)to underset("Acetic acid")(CH_(3)COOH)`
(v) `underset("Propane")(CH_(3)CH_(2)CH_(3)) underset(uv)overset(Cl_(2))to CH_(3)underset(Cl)underset(|)CHCH_(3)+CH_(3)CH_(2)CH_(2)Cl overset(alc. KOH)to CH_(3)CH=CH_(2) underset(800 K)overset(Cl_(2))to underset("Allyl chloride")(ClCH_(2)CH=CH_(2))`
(vi) `underset("1-Bromopropane")(CH_(3)CH_(2)CH_(2)Br) underset(KBr)overset(alc. KOH)to CH_(3)CH=CH_(2) overset(HBr)to underset("2-Bromoptopane")(CH_(3)underset(Br)underset(|)CH-CH_(3))`
(vii) `underset("Propene")(CH_(3)CH=CH_(2)) overset(Br_(2))to CH_(3)underset(Br)underset(|)CH-underset(Br)underset(|)CH_(2) overset(2 alc. KOH)to underset("Propyne")(CH_(3)C-=CH)`
(viii) `underset("Ethanol")(CH_(3)CH_(2)OH) overset(SOCl_(2))to CH_(3)CH_(2)Cl overset(HC-=CNa^(+))to underset("But-1-yne")(CH_(3)CH_(2)C-=CH)`