How do you convert the following: (i) Prop-1-ene to 1-fluoropropane (ii) Chlorobenzene to 2-chlorotoluene (iii) Ethanol to propanenitrile OR Write the main products when (i) n-butyl chloride is treated with alcoholic KOH (ii) 2,4,6-trinitrochlorobenzene is subjected to hydrolysis (iii) methyl chloride is treated with AgCN