" 55."quad CaC_(2)" Hydrolysis "longrightarrow A" HgS "O_(1)+" dil "H_(2)SO_(4)longrightarrow" B."B" is "

CaC_(2) on hydrolysis gives

CaC_(2) on hydrolysis gives

CaC_(2) on hydrolysis gives

CaC_(2) on hydrolysis gives

CaC_(2)overset("Hydrolysis")toAoverset(HgSO_(4)+dil.H_(2)SO_(4))toB . B is

CaC_(2) + H_(2)O to

Cl_(2)+NaOH cold / dil longrightarrow A+ Nacl +H_(2) Cl_(2)+NaoH hot / conc longrightarrow B+Nacl+H_(2) of oxidation numbers of chlorine in A and B is

Which is not decomposed by dil. H_(2)SO_(4) ?