Question

CaCO3⇒CaC2⇒CH≡CH⇒CH3COOH

Answer 1

1. CaCO3 + 4C = CaC2 + 3CO
2.CaC2 + 2H2O = Ca(OH)2 + C2H2
3. C2H2 + H2O = CH3COH
CH3COH + Ag2O = CH3COOH + 2Ag