CaC2---(H2O)-->X1----->KMNO4--->H2C2O4---(H2SO4 K)-->X2----HCOOK----->(H3PO4 K)-->X3

Question

CaC2---(H2O)-->X1----->KMNO4--->H2C2O4---(H2SO4 K)-->X2----HCOOK----->(H3PO4 K)-->X3

Answer 1

1) CaC2 + 2H2O = Ca(OH)2 + C2H2 (X1);

2) 3C2H2 + 8KMnO4 + 4H2O = 3H2C2O4 + 8KOH + 8MnO2;

3) H2C2O4 (+H2SO4 (конц.)) = H2O + CO (X2) + CO2;

4) CO + KOH (расплав) = HCOOK;

5) HCOOK + H3PO4 (конц.) = CO (X3) + KH2PO4 + H2O.