Đáp án:
(1) CaC2+2H2O -> CH≡CH +Ca(OH)2
(2) CH≡CH + 2AgNO3 + 2NH3 -> AgC≡CAg + H2O + 2NH4NO3
(3) CH≡CH + 2H2(dư) -Ni,to-> CH3-CH3
(4) CH3-CH3 -to,xt-> CH2=CH2 + H2
(5) CH2=CH2 + H2 -Ni,to-> CH3-CH3
(6) CH3-CH3 + Cl2 -askt-> CH3-CH2-Cl + HCl
(7) CH2=CH2 + HOH -> CH3-CH2-OH
(8) CH3-CH2-OH -H2SO4đ,>170độ-> CH2=CH2 + H2O