AP EAMCET Medical 24 Apr 2019 Shift 2 Paper

50 mL of 0.1M Na2CO3 (molar mass 106 g mol−1) taken in a litre volumetric flask is made upto the mark by distilled water. What volume of this solution is required to exactly neutralise 20 mL of 0.02 N oxalic acid dihydrate (molar mass 126 g mol−1) solution?