Question

100 mL of NaHC₂O₄ required 50mL of 0.1 M KMnO₄ solution in acidic medium. Volume of 0.1 M NaOH required to be neutralised by 100 mL of NaHC₂O₄ is

a)50ml  b)100ml  c)125ml  d)150ml 

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