C-12-Q185mediumsingle_mcqThe reaction CaC2+2H2O→C2H2+Ca(OH)2\mathrm{CaC_2 + 2H_2O \rightarrow C_2H_2 + Ca(OH)_2}CaC2+2H2O→C2H2+Ca(OH)2 produces—aethanebacetylenecethanoldmethane