CH3-CH3 ----(1)>>> CH2=CH2 ---(2)>>> CH3-CH2-OH ---(3)>>> CH3-CH2-Cl ---(4)>>> CH3-CH2-OH ---(5)>>> CH3-CH2-O-Na

1) CH3-CH3 -> CH2=CH2+ H22) CH2=CH2+ H2O -> CH3-CH2-OH3) CH3-CH2-OH+ HCL -> CH3-CH2-Cl + H2O4) CH3-CH2-Cl +NaOH -> CH3-CH2-OH+ NaCl5) CH3-CH2-OH + NaOH -> CH3-CH2-ONa+ H2O