0.00 Equivalent weight of oxalic acid salt in following reaction is : (Atomic masses : 0 = 16, C = 12, Ca = 40) H2C2O4 + Ca(OH)2 -> Cac204 + H2O (1) 90 g/geq (2) 45 g/geq (3) 64 g/geq (4) 128 g/geq W olorath of 40 mm -lent