is the following reaction right? 2 NaHSO3 + Zn → Na2S2O4 + Zn(OH)2 because i tried this reaction but i m not getting any Na2S2O4. I got this reaction in wikipedia. And i found another reaction in the net which is following: 2 NaHSO3 + H2SO3 + Zn ─→ ZnSO3 + Na2S2O4 + 2 H2O Which one is right? Plz anyone can help me?