Question

c2h2-c2h4-c2h6-c2h5cl-c2h5oh

Answer 1

CH=-CH + H2 -> CH2=CH2 (kat)
CH2=CH2 + H2 -> CH3-CH3 (kat)
CH3-CH3+Cl2 -> CH3-CH2-Cl + HCl (hv)
CH3-CH2-Cl+ NaOH -> CH3-CH2-OH + NaCl

Answer 2

C2H2->C2H4->C2H6->C2H5Cl->C2H5OH

1) C2H2+H2↑=C2H4

2)C2H4+H2↑=C2H6

3)C2H6+Cl2=C2H5Cl+HCl

4)C2H5Cl+NaOH=C2H5OH+NaCl