CaCO_(3) overset(Delta)rarr CaO +CO_2 CaO+3C rarr CaC_(2) +CO CaC_(2) +2 H_(2)O rarr Ca (OH)_(2) +C_(2) H_(2) The weight of CaCO_(3)needed for the preparation of 2.24 lit of Acetylene gas under S.T.P conditions is

CaCO_(3) overset(Delta)rarr CaO +CO_2 CaO+3C rarr CaC_(2) +CO CaC_(2

1.	CaCO_(3) overset(Delta)rarr CaO +CO_2 CaO+3C rarr CaC_(2) +CO CaC_(2) +2 H_(2)O rarr Ca (OH)_(2) +C_(2) H_(2) The weight of CaCO_(3)needed for the preparation of 2.24 lit of Acetylene gas under S.T.P conditions is
Answer» 10 G 20 g 5 g 2 g Answer :A