$1.575g$ of oxalic acid $(COOH)_2XH_2O$ are dissolved in water and the volume made upto 250ml.On titration 16.68ml of this solution requires 25ml of N/15 NaOH solution for complete neutralization.

Question

$(a)\;3\qquad(b)\;1\qquad(c)\;2\qquad(d)\;.5$