Question

CaC2--C2H2--CH3COH--CH3COOH
                                     |
                                   CH3COOCH3

Answer 1

$1) CaC2+2H2O=C2H2 + Ca(OH)2$
$\ 2) C2H2 + H2O = CH3COH$
$\ 3) CH3COH + Ag2O = CH3COOH + 2 Ag$
$\ 4) CH3COOH + CH3OH = CH3COOCH3 + H2O$