How will you bring about the following conversions ?
(i) Ethanol to but - 1 - yne
(ii) Ethane to bromoethane
(iii) Propene to 1 - nitropropane
(iv) Toluene to benzyl alcohol
(v) Propene to propyne
(vi) Ethanol to ethyl fluoride
(vii) Bromomethane to propanone
(viii) But-1-ene to but-2-ene
(ix) l - chlorobutane to n- octane
(x) Benzene to biphenyl
