Answers

2014-04-07T19:35:56+05:30
NA2S2O3+H2SO4 gives rise to H2O+Na2SO4+SO2
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i have done this bt this is considered wrong....try again,,,,
so2/s/na2so4/h2o/h2so4
2014-04-07T19:57:00+05:30
SORRY I DONT KNOW
GO ND CHEK THE BOOK



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